Home / 138,621,959.40-207,932,939.10-36,396,330.60

Finding the Fourth Proportional to 138,621,959.40, 207,932,939.10 and 36,396,330.60

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Solution

The fourth proportional to 138,621,959.40, 207,932,939.10 and 36,396,330.60 is: 54,594,495.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,621,959.40 : 207,932,939.10 = 36,396,330.60 : x
  2. Step 2: Convert to fraction form
    138,621,959.40/207,932,939.10 = 36,396,330.60/x
  3. Step 3: Cross multiply
    138,621,959.40x = 207,932,939.10 × 36,396,330.60
  4. Step 4: Simplify right side
    138,621,959.40x = 7,567,995,994,113,267
  5. Step 5: Solve for x
    x = 7,567,995,994,113,267/138,621,959.40
  6. Step 6: Final answer
    x = 54,594,495.90

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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.