Home / 28,471,631.40-42,707,447.10-27,148,933.80

Finding the Fourth Proportional to 28,471,631.40, 42,707,447.10 and 27,148,933.80

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Solution

The fourth proportional to 28,471,631.40, 42,707,447.10 and 27,148,933.80 is: 40,723,400.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,471,631.40 : 42,707,447.10 = 27,148,933.80 : x
  2. Step 2: Convert to fraction form
    28,471,631.40/42,707,447.10 = 27,148,933.80/x
  3. Step 3: Cross multiply
    28,471,631.40x = 42,707,447.10 × 27,148,933.80
  4. Step 4: Simplify right side
    28,471,631.40x = 1,159,461,654,084,902
  5. Step 5: Solve for x
    x = 1,159,461,654,084,902/28,471,631.40
  6. Step 6: Final answer
    x = 40,723,400.70

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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.