Home / 12,381,386.40-18,572,079.60-3,861,709.20

Finding the Fourth Proportional to 12,381,386.40, 18,572,079.60 and 3,861,709.20

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Solution

The fourth proportional to 12,381,386.40, 18,572,079.60 and 3,861,709.20 is: 5,792,563.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,381,386.40 : 18,572,079.60 = 3,861,709.20 : x
  2. Step 2: Convert to fraction form
    12,381,386.40/18,572,079.60 = 3,861,709.20/x
  3. Step 3: Cross multiply
    12,381,386.40x = 18,572,079.60 × 3,861,709.20
  4. Step 4: Simplify right side
    12,381,386.40x = 71,719,970,654,452.33
  5. Step 5: Solve for x
    x = 71,719,970,654,452.33/12,381,386.40
  6. Step 6: Final answer
    x = 5,792,563.80

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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.