Home / 627,428,049.12-865,790,050.32-363,057,307.20

Finding the Fourth Proportional to 627,428,049.12, 865,790,050.32 and 363,057,307.20

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Solution

The fourth proportional to 627,428,049.12, 865,790,050.32 and 363,057,307.20 is: 500,983,984.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,428,049.12 : 865,790,050.32 = 363,057,307.20 : x
  2. Step 2: Convert to fraction form
    627,428,049.12/865,790,050.32 = 363,057,307.20/x
  3. Step 3: Cross multiply
    627,428,049.12x = 865,790,050.32 × 363,057,307.20
  4. Step 4: Simplify right side
    627,428,049.12x = 314,331,404,269,731,712
  5. Step 5: Solve for x
    x = 314,331,404,269,731,712/627,428,049.12
  6. Step 6: Final answer
    x = 500,983,984.87

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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.