Home / 87,756,643.80-131,650,712.10-36,643,829.40

Finding the Fourth Proportional to 87,756,643.80, 131,650,712.10 and 36,643,829.40

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Solution

The fourth proportional to 87,756,643.80, 131,650,712.10 and 36,643,829.40 is: 54,972,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,756,643.80 : 131,650,712.10 = 36,643,829.40 : x
  2. Step 2: Convert to fraction form
    87,756,643.80/131,650,712.10 = 36,643,829.40/x
  3. Step 3: Cross multiply
    87,756,643.80x = 131,650,712.10 × 36,643,829.40
  4. Step 4: Simplify right side
    87,756,643.80x = 4,824,186,234,580,915
  5. Step 5: Solve for x
    x = 4,824,186,234,580,915/87,756,643.80
  6. Step 6: Final answer
    x = 54,972,319.20

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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.