Home / 13,486,519.70-20,229,779.55-7,817,815.70

Finding the Fourth Proportional to 13,486,519.70, 20,229,779.55 and 7,817,815.70

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Solution

The fourth proportional to 13,486,519.70, 20,229,779.55 and 7,817,815.70 is: 11,726,723.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486,519.70 : 20,229,779.55 = 7,817,815.70 : x
  2. Step 2: Convert to fraction form
    13,486,519.70/20,229,779.55 = 7,817,815.70/x
  3. Step 3: Cross multiply
    13,486,519.70x = 20,229,779.55 × 7,817,815.70
  4. Step 4: Simplify right side
    13,486,519.70x = 158,152,688,173,528.94
  5. Step 5: Solve for x
    x = 158,152,688,173,528.94/13,486,519.70
  6. Step 6: Final answer
    x = 11,726,723.55

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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.