Home / 66,572,962.20-99,691,481.70-53,136,034.20

Finding the Fourth Proportional to 66,572,962.20, 99,691,481.70 and 53,136,034.20

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Solution

The fourth proportional to 66,572,962.20, 99,691,481.70 and 53,136,034.20 is: 79,569,990.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,572,962.20 : 99,691,481.70 = 53,136,034.20 : x
  2. Step 2: Convert to fraction form
    66,572,962.20/99,691,481.70 = 53,136,034.20/x
  3. Step 3: Cross multiply
    66,572,962.20x = 99,691,481.70 × 53,136,034.20
  4. Step 4: Simplify right side
    66,572,962.20x = 5,297,209,981,059,875
  5. Step 5: Solve for x
    x = 5,297,209,981,059,875/66,572,962.20
  6. Step 6: Final answer
    x = 79,569,990.67

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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.