Home / 13,541,621.28-18,687,781.08-7,430,048.16

Finding the Fourth Proportional to 13,541,621.28, 18,687,781.08 and 7,430,048.16

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Solution

The fourth proportional to 13,541,621.28, 18,687,781.08 and 7,430,048.16 is: 10,253,655.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541,621.28 : 18,687,781.08 = 7,430,048.16 : x
  2. Step 2: Convert to fraction form
    13,541,621.28/18,687,781.08 = 7,430,048.16/x
  3. Step 3: Cross multiply
    13,541,621.28x = 18,687,781.08 × 7,430,048.16
  4. Step 4: Simplify right side
    13,541,621.28x = 138,851,113,427,936.80
  5. Step 5: Solve for x
    x = 138,851,113,427,936.80/13,541,621.28
  6. Step 6: Final answer
    x = 10,253,655.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.