Home / 20,543,288.61-28,349,748.21-11,251,443.04

Finding the Fourth Proportional to 20,543,288.61, 28,349,748.21 and 11,251,443.04

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Solution

The fourth proportional to 20,543,288.61, 28,349,748.21 and 11,251,443.04 is: 15,526,996.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,543,288.61 : 28,349,748.21 = 11,251,443.04 : x
  2. Step 2: Convert to fraction form
    20,543,288.61/28,349,748.21 = 11,251,443.04/x
  3. Step 3: Cross multiply
    20,543,288.61x = 28,349,748.21 × 11,251,443.04
  4. Step 4: Simplify right side
    20,543,288.61x = 318,975,577,282,159.94
  5. Step 5: Solve for x
    x = 318,975,577,282,159.94/20,543,288.61
  6. Step 6: Final answer
    x = 15,526,996.84

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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.