Home / 456,902,136.35-685,418,279.91-141,795,390.11

Finding the Fourth Proportional to 456,902,136.35, 685,418,279.91 and 141,795,390.11

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Solution

The fourth proportional to 456,902,136.35, 685,418,279.91 and 141,795,390.11 is: 212,713,280.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,902,136.35 : 685,418,279.91 = 141,795,390.11 : x
  2. Step 2: Convert to fraction form
    456,902,136.35/685,418,279.91 = 141,795,390.11/x
  3. Step 3: Cross multiply
    456,902,136.35x = 685,418,279.91 × 141,795,390.11
  4. Step 4: Simplify right side
    456,902,136.35x = 97,189,152,387,892,800
  5. Step 5: Solve for x
    x = 97,189,152,387,892,800/456,902,136.35
  6. Step 6: Final answer
    x = 212,713,280.71

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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.