Home / 13,479,903.30-20,219,854.95-8,378,069.70

Finding the Fourth Proportional to 13,479,903.30, 20,219,854.95 and 8,378,069.70

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Solution

The fourth proportional to 13,479,903.30, 20,219,854.95 and 8,378,069.70 is: 12,567,104.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479,903.30 : 20,219,854.95 = 8,378,069.70 : x
  2. Step 2: Convert to fraction form
    13,479,903.30/20,219,854.95 = 8,378,069.70/x
  3. Step 3: Cross multiply
    13,479,903.30x = 20,219,854.95 × 8,378,069.70
  4. Step 4: Simplify right side
    13,479,903.30x = 169,403,354,094,990
  5. Step 5: Solve for x
    x = 169,403,354,094,990/13,479,903.30
  6. Step 6: Final answer
    x = 12,567,104.55

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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.