Home / 1,405,070,472.60-1,938,999,531.08-769,890,030.12

Finding the Fourth Proportional to 1,405,070,472.60, 1,938,999,531.08 and 769,890,030.12

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Solution

The fourth proportional to 1,405,070,472.60, 1,938,999,531.08 and 769,890,030.12 is: 1,062,449,490.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,070,472.60 : 1,938,999,531.08 = 769,890,030.12 : x
  2. Step 2: Convert to fraction form
    1,405,070,472.60/1,938,999,531.08 = 769,890,030.12/x
  3. Step 3: Cross multiply
    1,405,070,472.60x = 1,938,999,531.08 × 769,890,030.12
  4. Step 4: Simplify right side
    1,405,070,472.60x = 1,492,816,407,385,847,040
  5. Step 5: Solve for x
    x = 1,492,816,407,385,847,040/1,405,070,472.60
  6. Step 6: Final answer
    x = 1,062,449,490.25

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.