Home / 145,691,817.40-218,537,726.10-73,132,406.20

Finding the Fourth Proportional to 145,691,817.40, 218,537,726.10 and 73,132,406.20

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Solution

The fourth proportional to 145,691,817.40, 218,537,726.10 and 73,132,406.20 is: 109,698,609.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,691,817.40 : 218,537,726.10 = 73,132,406.20 : x
  2. Step 2: Convert to fraction form
    145,691,817.40/218,537,726.10 = 73,132,406.20/x
  3. Step 3: Cross multiply
    145,691,817.40x = 218,537,726.10 × 73,132,406.20
  4. Step 4: Simplify right side
    145,691,817.40x = 15,982,189,755,169,542
  5. Step 5: Solve for x
    x = 15,982,189,755,169,542/145,691,817.40
  6. Step 6: Final answer
    x = 109,698,609.30

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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.