Home / 86,930,737.20-130,396,105.80-77,860,810.80

Finding the Fourth Proportional to 86,930,737.20, 130,396,105.80 and 77,860,810.80

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Solution

The fourth proportional to 86,930,737.20, 130,396,105.80 and 77,860,810.80 is: 116,791,216.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,930,737.20 : 130,396,105.80 = 77,860,810.80 : x
  2. Step 2: Convert to fraction form
    86,930,737.20/130,396,105.80 = 77,860,810.80/x
  3. Step 3: Cross multiply
    86,930,737.20x = 130,396,105.80 × 77,860,810.80
  4. Step 4: Simplify right side
    86,930,737.20x = 10,152,746,522,750,582
  5. Step 5: Solve for x
    x = 10,152,746,522,750,582/86,930,737.20
  6. Step 6: Final answer
    x = 116,791,216.20

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1.5x scale

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.