Home / 87,803,947.20-131,705,920.80-86,124,331.20

Finding the Fourth Proportional to 87,803,947.20, 131,705,920.80 and 86,124,331.20

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Solution

The fourth proportional to 87,803,947.20, 131,705,920.80 and 86,124,331.20 is: 129,186,496.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,803,947.20 : 131,705,920.80 = 86,124,331.20 : x
  2. Step 2: Convert to fraction form
    87,803,947.20/131,705,920.80 = 86,124,331.20/x
  3. Step 3: Cross multiply
    87,803,947.20x = 131,705,920.80 × 86,124,331.20
  4. Step 4: Simplify right side
    87,803,947.20x = 11,343,084,343,980,170
  5. Step 5: Solve for x
    x = 11,343,084,343,980,170/87,803,947.20
  6. Step 6: Final answer
    x = 129,186,496.80

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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.