Home / 31,778,889.68-47,608,191.48-18,786,141.20

Finding the Fourth Proportional to 31,778,889.68, 47,608,191.48 and 18,786,141.20

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Solution

The fourth proportional to 31,778,889.68, 47,608,191.48 and 18,786,141.20 is: 28,143,658.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,778,889.68 : 47,608,191.48 = 18,786,141.20 : x
  2. Step 2: Convert to fraction form
    31,778,889.68/47,608,191.48 = 18,786,141.20/x
  3. Step 3: Cross multiply
    31,778,889.68x = 47,608,191.48 × 18,786,141.20
  4. Step 4: Simplify right side
    31,778,889.68x = 894,374,207,419,916.88
  5. Step 5: Solve for x
    x = 894,374,207,419,916.88/31,778,889.68
  6. Step 6: Final answer
    x = 28,143,658.15

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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.