Home / 125,047,306.13-172,643,720.72-80,470,726.70

Finding the Fourth Proportional to 125,047,306.13, 172,643,720.72 and 80,470,726.70

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Solution

The fourth proportional to 125,047,306.13, 172,643,720.72 and 80,470,726.70 is: 111,100,079.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,047,306.13 : 172,643,720.72 = 80,470,726.70 : x
  2. Step 2: Convert to fraction form
    125,047,306.13/172,643,720.72 = 80,470,726.70/x
  3. Step 3: Cross multiply
    125,047,306.13x = 172,643,720.72 × 80,470,726.70
  4. Step 4: Simplify right side
    125,047,306.13x = 13,892,765,665,264,674
  5. Step 5: Solve for x
    x = 13,892,765,665,264,674/125,047,306.13
  6. Step 6: Final answer
    x = 111,100,079.61

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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.