Home / 28,779,885.90-43,192,215.16-20,087,517.04

Finding the Fourth Proportional to 28,779,885.90, 43,192,215.16 and 20,087,517.04

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Solution

The fourth proportional to 28,779,885.90, 43,192,215.16 and 20,087,517.04 is: 30,146,900.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,779,885.90 : 43,192,215.16 = 20,087,517.04 : x
  2. Step 2: Convert to fraction form
    28,779,885.90/43,192,215.16 = 20,087,517.04/x
  3. Step 3: Cross multiply
    28,779,885.90x = 43,192,215.16 × 20,087,517.04
  4. Step 4: Simplify right side
    28,779,885.90x = 867,624,357,863,647
  5. Step 5: Solve for x
    x = 867,624,357,863,647/28,779,885.90
  6. Step 6: Final answer
    x = 30,146,900.54

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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.