Home / 138,701,703.27-207,891,416.75-52,385,187.27

Finding the Fourth Proportional to 138,701,703.27, 207,891,416.75 and 52,385,187.27

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Solution

The fourth proportional to 138,701,703.27, 207,891,416.75 and 52,385,187.27 is: 78,516,921.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,701,703.27 : 207,891,416.75 = 52,385,187.27 : x
  2. Step 2: Convert to fraction form
    138,701,703.27/207,891,416.75 = 52,385,187.27/x
  3. Step 3: Cross multiply
    138,701,703.27x = 207,891,416.75 × 52,385,187.27
  4. Step 4: Simplify right side
    138,701,703.27x = 10,890,430,798,012,440
  5. Step 5: Solve for x
    x = 10,890,430,798,012,440/138,701,703.27
  6. Step 6: Final answer
    x = 78,516,921.86

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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.