Home / 20,927,442.75-31,391,295.35-5,781,505.47

Finding the Fourth Proportional to 20,927,442.75, 31,391,295.35 and 5,781,505.47

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Solution

The fourth proportional to 20,927,442.75, 31,391,295.35 and 5,781,505.47 is: 8,672,294.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,927,442.75 : 31,391,295.35 = 5,781,505.47 : x
  2. Step 2: Convert to fraction form
    20,927,442.75/31,391,295.35 = 5,781,505.47/x
  3. Step 3: Cross multiply
    20,927,442.75x = 31,391,295.35 × 5,781,505.47
  4. Step 4: Simplify right side
    20,927,442.75x = 181,488,945,747,503.03
  5. Step 5: Solve for x
    x = 181,488,945,747,503.03/20,927,442.75
  6. Step 6: Final answer
    x = 8,672,294.46

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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.