Home / 20,316,171.96-28,037,125.98-11,149,142.76

Finding the Fourth Proportional to 20,316,171.96, 28,037,125.98 and 11,149,142.76

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Solution

The fourth proportional to 20,316,171.96, 28,037,125.98 and 11,149,142.76 is: 15,386,260.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316,171.96 : 28,037,125.98 = 11,149,142.76 : x
  2. Step 2: Convert to fraction form
    20,316,171.96/28,037,125.98 = 11,149,142.76/x
  3. Step 3: Cross multiply
    20,316,171.96x = 28,037,125.98 × 11,149,142.76
  4. Step 4: Simplify right side
    20,316,171.96x = 312,589,920,131,124.88
  5. Step 5: Solve for x
    x = 312,589,920,131,124.88/20,316,171.96
  6. Step 6: Final answer
    x = 15,386,260.79

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1.5x scale

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.