Home / 18,689,129.43-25,791,003.75-10,316,504.28

Finding the Fourth Proportional to 18,689,129.43, 25,791,003.75 and 10,316,504.28

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Solution

The fourth proportional to 18,689,129.43, 25,791,003.75 and 10,316,504.28 is: 14,236,778.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689,129.43 : 25,791,003.75 = 10,316,504.28 : x
  2. Step 2: Convert to fraction form
    18,689,129.43/25,791,003.75 = 10,316,504.28/x
  3. Step 3: Cross multiply
    18,689,129.43x = 25,791,003.75 × 10,316,504.28
  4. Step 4: Simplify right side
    18,689,129.43x = 266,073,000,572,371.03
  5. Step 5: Solve for x
    x = 266,073,000,572,371.03/18,689,129.43
  6. Step 6: Final answer
    x = 14,236,778.74

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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.