Home / 87,218,866.80-130,828,300.20-29,775,999.60

Finding the Fourth Proportional to 87,218,866.80, 130,828,300.20 and 29,775,999.60

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Solution

The fourth proportional to 87,218,866.80, 130,828,300.20 and 29,775,999.60 is: 44,663,999.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,218,866.80 : 130,828,300.20 = 29,775,999.60 : x
  2. Step 2: Convert to fraction form
    87,218,866.80/130,828,300.20 = 29,775,999.60/x
  3. Step 3: Cross multiply
    87,218,866.80x = 130,828,300.20 × 29,775,999.60
  4. Step 4: Simplify right side
    87,218,866.80x = 3,895,543,414,423,880
  5. Step 5: Solve for x
    x = 3,895,543,414,423,880/87,218,866.80
  6. Step 6: Final answer
    x = 44,663,999.40

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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.