Home / 13,779,315.38-20,618,422.32-11,499,211.28

Finding the Fourth Proportional to 13,779,315.38, 20,618,422.32 and 11,499,211.28

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Solution

The fourth proportional to 13,779,315.38, 20,618,422.32 and 11,499,211.28 is: 17,206,630.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,779,315.38 : 20,618,422.32 = 11,499,211.28 : x
  2. Step 2: Convert to fraction form
    13,779,315.38/20,618,422.32 = 11,499,211.28/x
  3. Step 3: Cross multiply
    13,779,315.38x = 20,618,422.32 × 11,499,211.28
  4. Step 4: Simplify right side
    13,779,315.38x = 237,095,594,517,947.75
  5. Step 5: Solve for x
    x = 237,095,594,517,947.75/13,779,315.38
  6. Step 6: Final answer
    x = 17,206,630.95

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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.