Home / 509,952,753.30-764,929,129.95-407,916,081.30

Finding the Fourth Proportional to 509,952,753.30, 764,929,129.95 and 407,916,081.30

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Solution

The fourth proportional to 509,952,753.30, 764,929,129.95 and 407,916,081.30 is: 611,874,121.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,952,753.30 : 764,929,129.95 = 407,916,081.30 : x
  2. Step 2: Convert to fraction form
    509,952,753.30/764,929,129.95 = 407,916,081.30/x
  3. Step 3: Cross multiply
    509,952,753.30x = 764,929,129.95 × 407,916,081.30
  4. Step 4: Simplify right side
    509,952,753.30x = 312,026,893,161,422,464
  5. Step 5: Solve for x
    x = 312,026,893,161,422,464/509,952,753.30
  6. Step 6: Final answer
    x = 611,874,121.95

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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.