Home / 20,683,713.48-30,781,399.86-19,994,082.72

Finding the Fourth Proportional to 20,683,713.48, 30,781,399.86 and 19,994,082.72

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Solution

The fourth proportional to 20,683,713.48, 30,781,399.86 and 19,994,082.72 is: 29,755,094.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,683,713.48 : 30,781,399.86 = 19,994,082.72 : x
  2. Step 2: Convert to fraction form
    20,683,713.48/30,781,399.86 = 19,994,082.72/x
  3. Step 3: Cross multiply
    20,683,713.48x = 30,781,399.86 × 19,994,082.72
  4. Step 4: Simplify right side
    20,683,713.48x = 615,445,855,038,236.38
  5. Step 5: Solve for x
    x = 615,445,855,038,236.38/20,683,713.48
  6. Step 6: Final answer
    x = 29,755,094.78

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.