Home / 21,178,382.43-31,781,009.60-9,047,937.14

Finding the Fourth Proportional to 21,178,382.43, 31,781,009.60 and 9,047,937.14

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Solution

The fourth proportional to 21,178,382.43, 31,781,009.60 and 9,047,937.14 is: 13,577,645.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,178,382.43 : 31,781,009.60 = 9,047,937.14 : x
  2. Step 2: Convert to fraction form
    21,178,382.43/31,781,009.60 = 9,047,937.14/x
  3. Step 3: Cross multiply
    21,178,382.43x = 31,781,009.60 × 9,047,937.14
  4. Step 4: Simplify right side
    21,178,382.43x = 287,552,576,970,251.31
  5. Step 5: Solve for x
    x = 287,552,576,970,251.31/21,178,382.43
  6. Step 6: Final answer
    x = 13,577,645.88

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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.