Home / 38,639,905.80-57,959,858.70-20,724,001.80

Finding the Fourth Proportional to 38,639,905.80, 57,959,858.70 and 20,724,001.80

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Solution

The fourth proportional to 38,639,905.80, 57,959,858.70 and 20,724,001.80 is: 31,086,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,639,905.80 : 57,959,858.70 = 20,724,001.80 : x
  2. Step 2: Convert to fraction form
    38,639,905.80/57,959,858.70 = 20,724,001.80/x
  3. Step 3: Cross multiply
    38,639,905.80x = 57,959,858.70 × 20,724,001.80
  4. Step 4: Simplify right side
    38,639,905.80x = 1,201,160,216,026,545.75
  5. Step 5: Solve for x
    x = 1,201,160,216,026,545.75/38,639,905.80
  6. Step 6: Final answer
    x = 31,086,002.70

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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.