Home / 13,756,840.80-20,635,261.20-12,434,143.20

Finding the Fourth Proportional to 13,756,840.80, 20,635,261.20 and 12,434,143.20

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Solution

The fourth proportional to 13,756,840.80, 20,635,261.20 and 12,434,143.20 is: 18,651,214.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,756,840.80 : 20,635,261.20 = 12,434,143.20 : x
  2. Step 2: Convert to fraction form
    13,756,840.80/20,635,261.20 = 12,434,143.20/x
  3. Step 3: Cross multiply
    13,756,840.80x = 20,635,261.20 × 12,434,143.20
  4. Step 4: Simplify right side
    13,756,840.80x = 256,581,792,730,203.81
  5. Step 5: Solve for x
    x = 256,581,792,730,203.81/13,756,840.80
  6. Step 6: Final answer
    x = 18,651,214.80

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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.