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Finding the Fourth Proportional to 139,969,226.70, 209,953,840.05 and 110,743,908.30

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Solution

The fourth proportional to 139,969,226.70, 209,953,840.05 and 110,743,908.30 is: 166,115,862.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,969,226.70 : 209,953,840.05 = 110,743,908.30 : x
  2. Step 2: Convert to fraction form
    139,969,226.70/209,953,840.05 = 110,743,908.30/x
  3. Step 3: Cross multiply
    139,969,226.70x = 209,953,840.05 × 110,743,908.30
  4. Step 4: Simplify right side
    139,969,226.70x = 23,251,108,809,730,068
  5. Step 5: Solve for x
    x = 23,251,108,809,730,068/139,969,226.70
  6. Step 6: Final answer
    x = 166,115,862.45

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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.