Home / 20,779,548.40-28,675,815.68-11,612,191.12

Finding the Fourth Proportional to 20,779,548.40, 28,675,815.68 and 11,612,191.12

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Solution

The fourth proportional to 20,779,548.40, 28,675,815.68 and 11,612,191.12 is: 16,024,845.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,779,548.40 : 28,675,815.68 = 11,612,191.12 : x
  2. Step 2: Convert to fraction form
    20,779,548.40/28,675,815.68 = 11,612,191.12/x
  3. Step 3: Cross multiply
    20,779,548.40x = 28,675,815.68 × 11,612,191.12
  4. Step 4: Simplify right side
    20,779,548.40x = 332,989,052,198,052.75
  5. Step 5: Solve for x
    x = 332,989,052,198,052.75/20,779,548.40
  6. Step 6: Final answer
    x = 16,024,845.48

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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.