Home / 139,968,138.20-209,952,207.30-88,571,888.60

Finding the Fourth Proportional to 139,968,138.20, 209,952,207.30 and 88,571,888.60

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Solution

The fourth proportional to 139,968,138.20, 209,952,207.30 and 88,571,888.60 is: 132,857,832.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,138.20 : 209,952,207.30 = 88,571,888.60 : x
  2. Step 2: Convert to fraction form
    139,968,138.20/209,952,207.30 = 88,571,888.60/x
  3. Step 3: Cross multiply
    139,968,138.20x = 209,952,207.30 × 88,571,888.60
  4. Step 4: Simplify right side
    139,968,138.20x = 18,595,863,516,299,708
  5. Step 5: Solve for x
    x = 18,595,863,516,299,708/139,968,138.20
  6. Step 6: Final answer
    x = 132,857,832.90

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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.