Home / 5,121,123.76-7,067,068.31-2,797,966.36

Finding the Fourth Proportional to 5,121,123.76, 7,067,068.31 and 2,797,966.36

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Solution

The fourth proportional to 5,121,123.76, 7,067,068.31 and 2,797,966.36 is: 3,861,148.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,121,123.76 : 7,067,068.31 = 2,797,966.36 : x
  2. Step 2: Convert to fraction form
    5,121,123.76/7,067,068.31 = 2,797,966.36/x
  3. Step 3: Cross multiply
    5,121,123.76x = 7,067,068.31 × 2,797,966.36
  4. Step 4: Simplify right side
    5,121,123.76x = 19,773,419,365,478.40
  5. Step 5: Solve for x
    x = 19,773,419,365,478.40/5,121,123.76
  6. Step 6: Final answer
    x = 3,861,148.51

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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.