Home / 87,125,893.20-130,688,839.80-56,668,856.40

Finding the Fourth Proportional to 87,125,893.20, 130,688,839.80 and 56,668,856.40

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Solution

The fourth proportional to 87,125,893.20, 130,688,839.80 and 56,668,856.40 is: 85,003,284.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,125,893.20 : 130,688,839.80 = 56,668,856.40 : x
  2. Step 2: Convert to fraction form
    87,125,893.20/130,688,839.80 = 56,668,856.40/x
  3. Step 3: Cross multiply
    87,125,893.20x = 130,688,839.80 × 56,668,856.40
  4. Step 4: Simplify right side
    87,125,893.20x = 7,405,987,095,708,804
  5. Step 5: Solve for x
    x = 7,405,987,095,708,804/87,125,893.20
  6. Step 6: Final answer
    x = 85,003,284.60

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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.