Home / 13,141,505.10-19,712,257.65-9,315,129.90

Finding the Fourth Proportional to 13,141,505.10, 19,712,257.65 and 9,315,129.90

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Solution

The fourth proportional to 13,141,505.10, 19,712,257.65 and 9,315,129.90 is: 13,972,694.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,141,505.10 : 19,712,257.65 = 9,315,129.90 : x
  2. Step 2: Convert to fraction form
    13,141,505.10/19,712,257.65 = 9,315,129.90/x
  3. Step 3: Cross multiply
    13,141,505.10x = 19,712,257.65 × 9,315,129.90
  4. Step 4: Simplify right side
    13,141,505.10x = 183,622,240,632,018.72
  5. Step 5: Solve for x
    x = 183,622,240,632,018.72/13,141,505.10
  6. Step 6: Final answer
    x = 13,972,694.85

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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.