Home / 82,972,610.70-124,458,916.05-74,752,989.90

Finding the Fourth Proportional to 82,972,610.70, 124,458,916.05 and 74,752,989.90

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Solution

The fourth proportional to 82,972,610.70, 124,458,916.05 and 74,752,989.90 is: 112,129,484.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,972,610.70 : 124,458,916.05 = 74,752,989.90 : x
  2. Step 2: Convert to fraction form
    82,972,610.70/124,458,916.05 = 74,752,989.90/x
  3. Step 3: Cross multiply
    82,972,610.70x = 124,458,916.05 × 74,752,989.90
  4. Step 4: Simplify right side
    82,972,610.70x = 9,303,676,094,450,598
  5. Step 5: Solve for x
    x = 9,303,676,094,450,598/82,972,610.70
  6. Step 6: Final answer
    x = 112,129,484.85

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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.