Home / 1,140,385,036.32-1,573,731,285.84-618,864,268.32

Finding the Fourth Proportional to 1,140,385,036.32, 1,573,731,285.84 and 618,864,268.32

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Solution

The fourth proportional to 1,140,385,036.32, 1,573,731,285.84 and 618,864,268.32 is: 854,032,655.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,385,036.32 : 1,573,731,285.84 = 618,864,268.32 : x
  2. Step 2: Convert to fraction form
    1,140,385,036.32/1,573,731,285.84 = 618,864,268.32/x
  3. Step 3: Cross multiply
    1,140,385,036.32x = 1,573,731,285.84 × 618,864,268.32
  4. Step 4: Simplify right side
    1,140,385,036.32x = 973,926,060,743,664,384
  5. Step 5: Solve for x
    x = 973,926,060,743,664,384/1,140,385,036.32
  6. Step 6: Final answer
    x = 854,032,655.40

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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.