Home / 72,007,107.76-99,370,059.62-38,967,348.62

Finding the Fourth Proportional to 72,007,107.76, 99,370,059.62 and 38,967,348.62

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Solution

The fourth proportional to 72,007,107.76, 99,370,059.62 and 38,967,348.62 is: 53,775,076.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,007,107.76 : 99,370,059.62 = 38,967,348.62 : x
  2. Step 2: Convert to fraction form
    72,007,107.76/99,370,059.62 = 38,967,348.62/x
  3. Step 3: Cross multiply
    72,007,107.76x = 99,370,059.62 × 38,967,348.62
  4. Step 4: Simplify right side
    72,007,107.76x = 3,872,187,755,602,724.50
  5. Step 5: Solve for x
    x = 3,872,187,755,602,724.50/72,007,107.76
  6. Step 6: Final answer
    x = 53,775,076.88

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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.