Home / 28,779,886.40-43,192,215.91-20,087,517.54

Finding the Fourth Proportional to 28,779,886.40, 43,192,215.91 and 20,087,517.54

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Solution

The fourth proportional to 28,779,886.40, 43,192,215.91 and 20,087,517.54 is: 30,146,901.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,779,886.40 : 43,192,215.91 = 20,087,517.54 : x
  2. Step 2: Convert to fraction form
    28,779,886.40/43,192,215.91 = 20,087,517.54/x
  3. Step 3: Cross multiply
    28,779,886.40x = 43,192,215.91 × 20,087,517.54
  4. Step 4: Simplify right side
    28,779,886.40x = 867,624,394,683,592
  5. Step 5: Solve for x
    x = 867,624,394,683,592/28,779,886.40
  6. Step 6: Final answer
    x = 30,146,901.30

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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.