Home / 12,381,384.40-18,572,076.60-3,861,707.20

Finding the Fourth Proportional to 12,381,384.40, 18,572,076.60 and 3,861,707.20

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Solution

The fourth proportional to 12,381,384.40, 18,572,076.60 and 3,861,707.20 is: 5,792,560.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,381,384.40 : 18,572,076.60 = 3,861,707.20 : x
  2. Step 2: Convert to fraction form
    12,381,384.40/18,572,076.60 = 3,861,707.20/x
  3. Step 3: Cross multiply
    12,381,384.40x = 18,572,076.60 × 3,861,707.20
  4. Step 4: Simplify right side
    12,381,384.40x = 71,719,921,925,171.53
  5. Step 5: Solve for x
    x = 71,719,921,925,171.53/12,381,384.40
  6. Step 6: Final answer
    x = 5,792,560.80

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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.