Home / 15,125,011.92-20,872,765.26-8,249,493.96

Finding the Fourth Proportional to 15,125,011.92, 20,872,765.26 and 8,249,493.96

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Solution

The fourth proportional to 15,125,011.92, 20,872,765.26 and 8,249,493.96 is: 11,384,437.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,125,011.92 : 20,872,765.26 = 8,249,493.96 : x
  2. Step 2: Convert to fraction form
    15,125,011.92/20,872,765.26 = 8,249,493.96/x
  3. Step 3: Cross multiply
    15,125,011.92x = 20,872,765.26 × 8,249,493.96
  4. Step 4: Simplify right side
    15,125,011.92x = 172,189,750,940,867.84
  5. Step 5: Solve for x
    x = 172,189,750,940,867.84/15,125,011.92
  6. Step 6: Final answer
    x = 11,384,437.37

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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.