Home / 12,478,209.70-18,717,314.55-4,392,433.30

Finding the Fourth Proportional to 12,478,209.70, 18,717,314.55 and 4,392,433.30

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Solution

The fourth proportional to 12,478,209.70, 18,717,314.55 and 4,392,433.30 is: 6,588,649.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,478,209.70 : 18,717,314.55 = 4,392,433.30 : x
  2. Step 2: Convert to fraction form
    12,478,209.70/18,717,314.55 = 4,392,433.30/x
  3. Step 3: Cross multiply
    12,478,209.70x = 18,717,314.55 × 4,392,433.30
  4. Step 4: Simplify right side
    12,478,209.70x = 82,214,555,715,994.52
  5. Step 5: Solve for x
    x = 82,214,555,715,994.52/12,478,209.70
  6. Step 6: Final answer
    x = 6,588,649.95

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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.