Home / 8,680,191.60-12,983,423.40-7,788,082.80

Finding the Fourth Proportional to 8,680,191.60, 12,983,423.40 and 7,788,082.80

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Solution

The fourth proportional to 8,680,191.60, 12,983,423.40 and 7,788,082.80 is: 11,649,048.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680,191.60 : 12,983,423.40 = 7,788,082.80 : x
  2. Step 2: Convert to fraction form
    8,680,191.60/12,983,423.40 = 7,788,082.80/x
  3. Step 3: Cross multiply
    8,680,191.60x = 12,983,423.40 × 7,788,082.80
  4. Step 4: Simplify right side
    8,680,191.60x = 101,115,976,466,657.52
  5. Step 5: Solve for x
    x = 101,115,976,466,657.52/8,680,191.60
  6. Step 6: Final answer
    x = 11,649,048.91

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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.