Home / 138,795,475.20-208,193,212.80-70,771,027.20

Finding the Fourth Proportional to 138,795,475.20, 208,193,212.80 and 70,771,027.20

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Solution

The fourth proportional to 138,795,475.20, 208,193,212.80 and 70,771,027.20 is: 106,156,540.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,795,475.20 : 208,193,212.80 = 70,771,027.20 : x
  2. Step 2: Convert to fraction form
    138,795,475.20/208,193,212.80 = 70,771,027.20/x
  3. Step 3: Cross multiply
    138,795,475.20x = 208,193,212.80 × 70,771,027.20
  4. Step 4: Simplify right side
    138,795,475.20x = 14,734,047,525,924,190
  5. Step 5: Solve for x
    x = 14,734,047,525,924,190/138,795,475.20
  6. Step 6: Final answer
    x = 106,156,540.80

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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.