Home / 87,688,220.40-131,532,330.60-82,985,295.60

Finding the Fourth Proportional to 87,688,220.40, 131,532,330.60 and 82,985,295.60

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Solution

The fourth proportional to 87,688,220.40, 131,532,330.60 and 82,985,295.60 is: 124,477,943.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,688,220.40 : 131,532,330.60 = 82,985,295.60 : x
  2. Step 2: Convert to fraction form
    87,688,220.40/131,532,330.60 = 82,985,295.60/x
  3. Step 3: Cross multiply
    87,688,220.40x = 131,532,330.60 × 82,985,295.60
  4. Step 4: Simplify right side
    87,688,220.40x = 10,915,249,335,797,924
  5. Step 5: Solve for x
    x = 10,915,249,335,797,924/87,688,220.40
  6. Step 6: Final answer
    x = 124,477,943.40

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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.