Home / 28,078,860.38-42,112,964.00-13,687,454.30

Finding the Fourth Proportional to 28,078,860.38, 42,112,964.00 and 13,687,454.30

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Solution

The fourth proportional to 28,078,860.38, 42,112,964.00 and 13,687,454.30 is: 20,528,584.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,078,860.38 : 42,112,964.00 = 13,687,454.30 : x
  2. Step 2: Convert to fraction form
    28,078,860.38/42,112,964.00 = 13,687,454.30/x
  3. Step 3: Cross multiply
    28,078,860.38x = 42,112,964.00 × 13,687,454.30
  4. Step 4: Simplify right side
    28,078,860.38x = 576,419,270,011,199
  5. Step 5: Solve for x
    x = 576,419,270,011,199/28,078,860.38
  6. Step 6: Final answer
    x = 20,528,584.93

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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.