Home / 418,297,736.90-626,234,947.44-315,101,554.61

Finding the Fourth Proportional to 418,297,736.90, 626,234,947.44 and 315,101,554.61

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Solution

The fourth proportional to 418,297,736.90, 626,234,947.44 and 315,101,554.61 is: 471,739,596.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,297,736.90 : 626,234,947.44 = 315,101,554.61 : x
  2. Step 2: Convert to fraction form
    418,297,736.90/626,234,947.44 = 315,101,554.61/x
  3. Step 3: Cross multiply
    418,297,736.90x = 626,234,947.44 × 315,101,554.61
  4. Step 4: Simplify right side
    418,297,736.90x = 197,327,605,489,455,680
  5. Step 5: Solve for x
    x = 197,327,605,489,455,680/418,297,736.90
  6. Step 6: Final answer
    x = 471,739,596.18

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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.