Home / 28,721,664.10-43,103,491.35-20,218,608.10

Finding the Fourth Proportional to 28,721,664.10, 43,103,491.35 and 20,218,608.10

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Solution

The fourth proportional to 28,721,664.10, 43,103,491.35 and 20,218,608.10 is: 30,342,691.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,721,664.10 : 43,103,491.35 = 20,218,608.10 : x
  2. Step 2: Convert to fraction form
    28,721,664.10/43,103,491.35 = 20,218,608.10/x
  3. Step 3: Cross multiply
    28,721,664.10x = 43,103,491.35 × 20,218,608.10
  4. Step 4: Simplify right side
    28,721,664.10x = 871,492,599,347,390
  5. Step 5: Solve for x
    x = 871,492,599,347,390/28,721,664.10
  6. Step 6: Final answer
    x = 30,342,691.72

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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.