Home / 21,472,082.52-31,980,706.86-21,367,454.76

Finding the Fourth Proportional to 21,472,082.52, 31,980,706.86 and 21,367,454.76

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Solution

The fourth proportional to 21,472,082.52, 31,980,706.86 and 21,367,454.76 is: 31,824,873.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,472,082.52 : 31,980,706.86 = 21,367,454.76 : x
  2. Step 2: Convert to fraction form
    21,472,082.52/31,980,706.86 = 21,367,454.76/x
  3. Step 3: Cross multiply
    21,472,082.52x = 31,980,706.86 × 21,367,454.76
  4. Step 4: Simplify right side
    21,472,082.52x = 683,346,307,023,871.75
  5. Step 5: Solve for x
    x = 683,346,307,023,871.75/21,472,082.52
  6. Step 6: Final answer
    x = 31,824,873.36

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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.