Home / 28,543,726.80-42,757,529.40-17,727,829.20

Finding the Fourth Proportional to 28,543,726.80, 42,757,529.40 and 17,727,829.20

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Solution

The fourth proportional to 28,543,726.80, 42,757,529.40 and 17,727,829.20 is: 26,555,683.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,543,726.80 : 42,757,529.40 = 17,727,829.20 : x
  2. Step 2: Convert to fraction form
    28,543,726.80/42,757,529.40 = 17,727,829.20/x
  3. Step 3: Cross multiply
    28,543,726.80x = 42,757,529.40 × 17,727,829.20
  4. Step 4: Simplify right side
    28,543,726.80x = 757,998,178,217,178.38
  5. Step 5: Solve for x
    x = 757,998,178,217,178.38/28,543,726.80
  6. Step 6: Final answer
    x = 26,555,683.62

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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.