Home / 15,000,597.32-20,700,825-8,125,079.39

Finding the Fourth Proportional to 15,000,597.32, 20,700,825 and 8,125,079.39

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Solution

The fourth proportional to 15,000,597.32, 20,700,825 and 8,125,079.39 is: 11,212,609.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,000,597.32 : 20,700,825 = 8,125,079.39 : x
  2. Step 2: Convert to fraction form
    15,000,597.32/20,700,825 = 8,125,079.39/x
  3. Step 3: Cross multiply
    15,000,597.32x = 20,700,825 × 8,125,079.39
  4. Step 4: Simplify right side
    15,000,597.32x = 168,195,846,563,496.75
  5. Step 5: Solve for x
    x = 168,195,846,563,496.75/15,000,597.32
  6. Step 6: Final answer
    x = 11,212,609.94

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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.