Home / 82,721,374.05-124,082,061.08-52,110,372.45

Finding the Fourth Proportional to 82,721,374.05, 124,082,061.08 and 52,110,372.45

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Solution

The fourth proportional to 82,721,374.05, 124,082,061.08 and 52,110,372.45 is: 78,165,558.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,721,374.05 : 124,082,061.08 = 52,110,372.45 : x
  2. Step 2: Convert to fraction form
    82,721,374.05/124,082,061.08 = 52,110,372.45/x
  3. Step 3: Cross multiply
    82,721,374.05x = 124,082,061.08 × 52,110,372.45
  4. Step 4: Simplify right side
    82,721,374.05x = 6,465,962,416,981,898
  5. Step 5: Solve for x
    x = 6,465,962,416,981,898/82,721,374.05
  6. Step 6: Final answer
    x = 78,165,558.68

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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.