Home / 18,873,742.20-28,331,900.10-12,496,450.20

Finding the Fourth Proportional to 18,873,742.20, 28,331,900.10 and 12,496,450.20

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Solution

The fourth proportional to 18,873,742.20, 28,331,900.10 and 12,496,450.20 is: 18,758,769.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,873,742.20 : 28,331,900.10 = 12,496,450.20 : x
  2. Step 2: Convert to fraction form
    18,873,742.20/28,331,900.10 = 12,496,450.20/x
  3. Step 3: Cross multiply
    18,873,742.20x = 28,331,900.10 × 12,496,450.20
  4. Step 4: Simplify right side
    18,873,742.20x = 354,048,178,671,025
  5. Step 5: Solve for x
    x = 354,048,178,671,025/18,873,742.20
  6. Step 6: Final answer
    x = 18,758,769.45

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1.5x scale

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.