Home / 8,275,275.20-12,412,912.80-6,385,707.20

Finding the Fourth Proportional to 8,275,275.20, 12,412,912.80 and 6,385,707.20

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Solution

The fourth proportional to 8,275,275.20, 12,412,912.80 and 6,385,707.20 is: 9,578,560.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,275,275.20 : 12,412,912.80 = 6,385,707.20 : x
  2. Step 2: Convert to fraction form
    8,275,275.20/12,412,912.80 = 6,385,707.20/x
  3. Step 3: Cross multiply
    8,275,275.20x = 12,412,912.80 × 6,385,707.20
  4. Step 4: Simplify right side
    8,275,275.20x = 79,265,226,639,932.17
  5. Step 5: Solve for x
    x = 79,265,226,639,932.17/8,275,275.20
  6. Step 6: Final answer
    x = 9,578,560.80

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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.