Home / 28,785,456.48-39,723,856.11-15,732,804.18

Finding the Fourth Proportional to 28,785,456.48, 39,723,856.11 and 15,732,804.18

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Solution

The fourth proportional to 28,785,456.48, 39,723,856.11 and 15,732,804.18 is: 21,711,229.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,785,456.48 : 39,723,856.11 = 15,732,804.18 : x
  2. Step 2: Convert to fraction form
    28,785,456.48/39,723,856.11 = 15,732,804.18/x
  3. Step 3: Cross multiply
    28,785,456.48x = 39,723,856.11 × 15,732,804.18
  4. Step 4: Simplify right side
    28,785,456.48x = 624,967,649,453,126.50
  5. Step 5: Solve for x
    x = 624,967,649,453,126.50/28,785,456.48
  6. Step 6: Final answer
    x = 21,711,229.42

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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.