Home / 91,685,938.62-126,515,098.70-61,981,216.15

Finding the Fourth Proportional to 91,685,938.62, 126,515,098.70 and 61,981,216.15

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Solution

The fourth proportional to 91,685,938.62, 126,515,098.70 and 61,981,216.15 is: 85,526,306.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,685,938.62 : 126,515,098.70 = 61,981,216.15 : x
  2. Step 2: Convert to fraction form
    91,685,938.62/126,515,098.70 = 61,981,216.15/x
  3. Step 3: Cross multiply
    91,685,938.62x = 126,515,098.70 × 61,981,216.15
  4. Step 4: Simplify right side
    91,685,938.62x = 7,841,559,678,606,736
  5. Step 5: Solve for x
    x = 7,841,559,678,606,736/91,685,938.62
  6. Step 6: Final answer
    x = 85,526,306.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.