Home / 509,724,120.60-763,452,440.10-419,024,856.60

Finding the Fourth Proportional to 509,724,120.60, 763,452,440.10 and 419,024,856.60

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Solution

The fourth proportional to 509,724,120.60, 763,452,440.10 and 419,024,856.60 is: 627,605,279.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,724,120.60 : 763,452,440.10 = 419,024,856.60 : x
  2. Step 2: Convert to fraction form
    509,724,120.60/763,452,440.10 = 419,024,856.60/x
  3. Step 3: Cross multiply
    509,724,120.60x = 763,452,440.10 × 419,024,856.60
  4. Step 4: Simplify right side
    509,724,120.60x = 319,905,549,233,822,592
  5. Step 5: Solve for x
    x = 319,905,549,233,822,592/509,724,120.60
  6. Step 6: Final answer
    x = 627,605,279.61

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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.