Home / 402,205,279.17-603,319,240.42-111,072,404.15

Finding the Fourth Proportional to 402,205,279.17, 603,319,240.42 and 111,072,404.15

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Solution

The fourth proportional to 402,205,279.17, 603,319,240.42 and 111,072,404.15 is: 166,611,732.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,205,279.17 : 603,319,240.42 = 111,072,404.15 : x
  2. Step 2: Convert to fraction form
    402,205,279.17/603,319,240.42 = 111,072,404.15/x
  3. Step 3: Cross multiply
    402,205,279.17x = 603,319,240.42 × 111,072,404.15
  4. Step 4: Simplify right side
    402,205,279.17x = 67,012,118,502,369,432
  5. Step 5: Solve for x
    x = 67,012,118,502,369,432/402,205,279.17
  6. Step 6: Final answer
    x = 166,611,732.79

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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.