Home / 20,672,341.92-28,527,832-11,507,149.84

Finding the Fourth Proportional to 20,672,341.92, 28,527,832 and 11,507,149.84

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Solution

The fourth proportional to 20,672,341.92, 28,527,832 and 11,507,149.84 is: 15,879,866.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,672,341.92 : 28,527,832 = 11,507,149.84 : x
  2. Step 2: Convert to fraction form
    20,672,341.92/28,527,832 = 11,507,149.84/x
  3. Step 3: Cross multiply
    20,672,341.92x = 28,527,832 × 11,507,149.84
  4. Step 4: Simplify right side
    20,672,341.92x = 328,274,037,434,346.88
  5. Step 5: Solve for x
    x = 328,274,037,434,346.88/20,672,341.92
  6. Step 6: Final answer
    x = 15,879,866.86

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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.