Home / 20,587,465.68-30,882,637.08-8,457,540.72

Finding the Fourth Proportional to 20,587,465.68, 30,882,637.08 and 8,457,540.72

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Solution

The fourth proportional to 20,587,465.68, 30,882,637.08 and 8,457,540.72 is: 12,686,902.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,587,465.68 : 30,882,637.08 = 8,457,540.72 : x
  2. Step 2: Convert to fraction form
    20,587,465.68/30,882,637.08 = 8,457,540.72/x
  3. Step 3: Cross multiply
    20,587,465.68x = 30,882,637.08 × 8,457,540.72
  4. Step 4: Simplify right side
    20,587,465.68x = 261,191,160,645,081.91
  5. Step 5: Solve for x
    x = 261,191,160,645,081.91/20,587,465.68
  6. Step 6: Final answer
    x = 12,686,902.06

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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.