Home / 20,832,278.55-31,296,444.34-19,971,358.71

Finding the Fourth Proportional to 20,832,278.55, 31,296,444.34 and 19,971,358.71

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Solution

The fourth proportional to 20,832,278.55, 31,296,444.34 and 19,971,358.71 is: 30,003,079.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,832,278.55 : 31,296,444.34 = 19,971,358.71 : x
  2. Step 2: Convert to fraction form
    20,832,278.55/31,296,444.34 = 19,971,358.71/x
  3. Step 3: Cross multiply
    20,832,278.55x = 31,296,444.34 × 19,971,358.71
  4. Step 4: Simplify right side
    20,832,278.55x = 625,032,516,261,689.25
  5. Step 5: Solve for x
    x = 625,032,516,261,689.25/20,832,278.55
  6. Step 6: Final answer
    x = 30,003,079.82

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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.