Home / 20,832,005.30-31,248,007.95-5,479,265.30

Finding the Fourth Proportional to 20,832,005.30, 31,248,007.95 and 5,479,265.30

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Solution

The fourth proportional to 20,832,005.30, 31,248,007.95 and 5,479,265.30 is: 8,218,897.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,832,005.30 : 31,248,007.95 = 5,479,265.30 : x
  2. Step 2: Convert to fraction form
    20,832,005.30/31,248,007.95 = 5,479,265.30/x
  3. Step 3: Cross multiply
    20,832,005.30x = 31,248,007.95 × 5,479,265.30
  4. Step 4: Simplify right side
    20,832,005.30x = 171,216,125,654,559.12
  5. Step 5: Solve for x
    x = 171,216,125,654,559.12/20,832,005.30
  6. Step 6: Final answer
    x = 8,218,897.95

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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.