Home / 115,187,079.40-172,780,619.10-84,576,077.80

Finding the Fourth Proportional to 115,187,079.40, 172,780,619.10 and 84,576,077.80

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Solution

The fourth proportional to 115,187,079.40, 172,780,619.10 and 84,576,077.80 is: 126,864,116.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,187,079.40 : 172,780,619.10 = 84,576,077.80 : x
  2. Step 2: Convert to fraction form
    115,187,079.40/172,780,619.10 = 84,576,077.80/x
  3. Step 3: Cross multiply
    115,187,079.40x = 172,780,619.10 × 84,576,077.80
  4. Step 4: Simplify right side
    115,187,079.40x = 14,613,107,083,333,764
  5. Step 5: Solve for x
    x = 14,613,107,083,333,764/115,187,079.40
  6. Step 6: Final answer
    x = 126,864,116.70

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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.