Home / 87,420,215.26-120,655,688.70-52,140,282.04

Finding the Fourth Proportional to 87,420,215.26, 120,655,688.70 and 52,140,282.04

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Solution

The fourth proportional to 87,420,215.26, 120,655,688.70 and 52,140,282.04 is: 71,963,007.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,420,215.26 : 120,655,688.70 = 52,140,282.04 : x
  2. Step 2: Convert to fraction form
    87,420,215.26/120,655,688.70 = 52,140,282.04/x
  3. Step 3: Cross multiply
    87,420,215.26x = 120,655,688.70 × 52,140,282.04
  4. Step 4: Simplify right side
    87,420,215.26x = 6,291,021,638,548,441
  5. Step 5: Solve for x
    x = 6,291,021,638,548,441/87,420,215.26
  6. Step 6: Final answer
    x = 71,963,007.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.