Home / 87,225,813.60-130,697,002.80-72,770,618.40

Finding the Fourth Proportional to 87,225,813.60, 130,697,002.80 and 72,770,618.40

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Solution

The fourth proportional to 87,225,813.60, 130,697,002.80 and 72,770,618.40 is: 109,037,695.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,225,813.60 : 130,697,002.80 = 72,770,618.40 : x
  2. Step 2: Convert to fraction form
    87,225,813.60/130,697,002.80 = 72,770,618.40/x
  3. Step 3: Cross multiply
    87,225,813.60x = 130,697,002.80 × 72,770,618.40
  4. Step 4: Simplify right side
    87,225,813.60x = 9,510,901,716,782,532
  5. Step 5: Solve for x
    x = 9,510,901,716,782,532/87,225,813.60
  6. Step 6: Final answer
    x = 109,037,695.66

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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.