Home / 10,287,072.30-15,414,862.05-9,720,201.90

Finding the Fourth Proportional to 10,287,072.30, 15,414,862.05 and 9,720,201.90

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Solution

The fourth proportional to 10,287,072.30, 15,414,862.05 and 9,720,201.90 is: 14,565,424.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,287,072.30 : 15,414,862.05 = 9,720,201.90 : x
  2. Step 2: Convert to fraction form
    10,287,072.30/15,414,862.05 = 9,720,201.90/x
  3. Step 3: Cross multiply
    10,287,072.30x = 15,414,862.05 × 9,720,201.90
  4. Step 4: Simplify right side
    10,287,072.30x = 149,835,571,386,647.91
  5. Step 5: Solve for x
    x = 149,835,571,386,647.91/10,287,072.30
  6. Step 6: Final answer
    x = 14,565,424.16

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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.