Home / 13,172,720.47-19,770,430.91-9,132,045.82

Finding the Fourth Proportional to 13,172,720.47, 19,770,430.91 and 9,132,045.82

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Solution

The fourth proportional to 13,172,720.47, 19,770,430.91 and 9,132,045.82 is: 13,705,937.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172,720.47 : 19,770,430.91 = 9,132,045.82 : x
  2. Step 2: Convert to fraction form
    13,172,720.47/19,770,430.91 = 9,132,045.82/x
  3. Step 3: Cross multiply
    13,172,720.47x = 19,770,430.91 × 9,132,045.82
  4. Step 4: Simplify right side
    13,172,720.47x = 180,544,480,856,178.03
  5. Step 5: Solve for x
    x = 180,544,480,856,178.03/13,172,720.47
  6. Step 6: Final answer
    x = 13,705,937.30

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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.