Home / 20,931,473.56-28,884,760.50-11,638,998.04

Finding the Fourth Proportional to 20,931,473.56, 28,884,760.50 and 11,638,998.04

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Solution

The fourth proportional to 20,931,473.56, 28,884,760.50 and 11,638,998.04 is: 16,061,443.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,931,473.56 : 28,884,760.50 = 11,638,998.04 : x
  2. Step 2: Convert to fraction form
    20,931,473.56/28,884,760.50 = 11,638,998.04/x
  3. Step 3: Cross multiply
    20,931,473.56x = 28,884,760.50 × 11,638,998.04
  4. Step 4: Simplify right side
    20,931,473.56x = 336,189,670,845,369.38
  5. Step 5: Solve for x
    x = 336,189,670,845,369.38/20,931,473.56
  6. Step 6: Final answer
    x = 16,061,443.06

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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.