Home / 1,123,304,845.60-1,684,957,268.40-511,084,813.60

Finding the Fourth Proportional to 1,123,304,845.60, 1,684,957,268.40 and 511,084,813.60

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Solution

The fourth proportional to 1,123,304,845.60, 1,684,957,268.40 and 511,084,813.60 is: 766,627,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,304,845.60 : 1,684,957,268.40 = 511,084,813.60 : x
  2. Step 2: Convert to fraction form
    1,123,304,845.60/1,684,957,268.40 = 511,084,813.60/x
  3. Step 3: Cross multiply
    1,123,304,845.60x = 1,684,957,268.40 × 511,084,813.60
  4. Step 4: Simplify right side
    1,123,304,845.60x = 861,156,071,444,179,200
  5. Step 5: Solve for x
    x = 861,156,071,444,179,200/1,123,304,845.60
  6. Step 6: Final answer
    x = 766,627,220.40

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Half scale
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Double scale
Find fourth proportional to 1,123,304,846.60, 1,684,957,269.90 and 511,084,814.60
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.