Home / 87,879,901.60-131,819,852.40-84,296,720.80

Finding the Fourth Proportional to 87,879,901.60, 131,819,852.40 and 84,296,720.80

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Solution

The fourth proportional to 87,879,901.60, 131,819,852.40 and 84,296,720.80 is: 126,445,081.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,879,901.60 : 131,819,852.40 = 84,296,720.80 : x
  2. Step 2: Convert to fraction form
    87,879,901.60/131,819,852.40 = 84,296,720.80/x
  3. Step 3: Cross multiply
    87,879,901.60x = 131,819,852.40 × 84,296,720.80
  4. Step 4: Simplify right side
    87,879,901.60x = 11,111,981,293,660,010
  5. Step 5: Solve for x
    x = 11,111,981,293,660,010/87,879,901.60
  6. Step 6: Final answer
    x = 126,445,081.20

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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.