Home / 28,073,686.20-42,110,529.30-18,826,612.80

Finding the Fourth Proportional to 28,073,686.20, 42,110,529.30 and 18,826,612.80

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Solution

The fourth proportional to 28,073,686.20, 42,110,529.30 and 18,826,612.80 is: 28,239,919.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,073,686.20 : 42,110,529.30 = 18,826,612.80 : x
  2. Step 2: Convert to fraction form
    28,073,686.20/42,110,529.30 = 18,826,612.80/x
  3. Step 3: Cross multiply
    28,073,686.20x = 42,110,529.30 × 18,826,612.80
  4. Step 4: Simplify right side
    28,073,686.20x = 792,798,629,934,155
  5. Step 5: Solve for x
    x = 792,798,629,934,155/28,073,686.20
  6. Step 6: Final answer
    x = 28,239,919.20

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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.