Home / 12,288,560.20-18,432,840.30-8,506,313.80

Finding the Fourth Proportional to 12,288,560.20, 18,432,840.30 and 8,506,313.80

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Solution

The fourth proportional to 12,288,560.20, 18,432,840.30 and 8,506,313.80 is: 12,759,470.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,288,560.20 : 18,432,840.30 = 8,506,313.80 : x
  2. Step 2: Convert to fraction form
    12,288,560.20/18,432,840.30 = 8,506,313.80/x
  3. Step 3: Cross multiply
    12,288,560.20x = 18,432,840.30 × 8,506,313.80
  4. Step 4: Simplify right side
    12,288,560.20x = 156,795,523,817,086.16
  5. Step 5: Solve for x
    x = 156,795,523,817,086.16/12,288,560.20
  6. Step 6: Final answer
    x = 12,759,470.70

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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.