Home / 28,367,218.20-42,527,499.30-12,205,579.80

Finding the Fourth Proportional to 28,367,218.20, 42,527,499.30 and 12,205,579.80

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Solution

The fourth proportional to 28,367,218.20, 42,527,499.30 and 12,205,579.80 is: 18,298,332.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,367,218.20 : 42,527,499.30 = 12,205,579.80 : x
  2. Step 2: Convert to fraction form
    28,367,218.20/42,527,499.30 = 12,205,579.80/x
  3. Step 3: Cross multiply
    28,367,218.20x = 42,527,499.30 × 12,205,579.80
  4. Step 4: Simplify right side
    28,367,218.20x = 519,072,786,400,594.12
  5. Step 5: Solve for x
    x = 519,072,786,400,594.12/28,367,218.20
  6. Step 6: Final answer
    x = 18,298,332.35

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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.