Home / 13,052,707.72-18,013,057.66-7,172,294.83

Finding the Fourth Proportional to 13,052,707.72, 18,013,057.66 and 7,172,294.83

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Solution

The fourth proportional to 13,052,707.72, 18,013,057.66 and 7,172,294.83 is: 9,897,943.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,052,707.72 : 18,013,057.66 = 7,172,294.83 : x
  2. Step 2: Convert to fraction form
    13,052,707.72/18,013,057.66 = 7,172,294.83/x
  3. Step 3: Cross multiply
    13,052,707.72x = 18,013,057.66 × 7,172,294.83
  4. Step 4: Simplify right side
    13,052,707.72x = 129,194,960,291,242.61
  5. Step 5: Solve for x
    x = 129,194,960,291,242.61/13,052,707.72
  6. Step 6: Final answer
    x = 9,897,943.25

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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.