Home / 38,581,815.61-53,242,963.86-20,940,724.50

Finding the Fourth Proportional to 38,581,815.61, 53,242,963.86 and 20,940,724.50

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Solution

The fourth proportional to 38,581,815.61, 53,242,963.86 and 20,940,724.50 is: 28,898,231.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,581,815.61 : 53,242,963.86 = 20,940,724.50 : x
  2. Step 2: Convert to fraction form
    38,581,815.61/53,242,963.86 = 20,940,724.50/x
  3. Step 3: Cross multiply
    38,581,815.61x = 53,242,963.86 × 20,940,724.50
  4. Step 4: Simplify right side
    38,581,815.61x = 1,114,946,237,755,716.50
  5. Step 5: Solve for x
    x = 1,114,946,237,755,716.50/38,581,815.61
  6. Step 6: Final answer
    x = 28,898,231.46

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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.