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Finding the Fourth Proportional to 139,700,135.80, 209,550,203.70 and 43,962,023.80

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Solution

The fourth proportional to 139,700,135.80, 209,550,203.70 and 43,962,023.80 is: 65,943,035.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,700,135.80 : 209,550,203.70 = 43,962,023.80 : x
  2. Step 2: Convert to fraction form
    139,700,135.80/209,550,203.70 = 43,962,023.80/x
  3. Step 3: Cross multiply
    139,700,135.80x = 209,550,203.70 × 43,962,023.80
  4. Step 4: Simplify right side
    139,700,135.80x = 9,212,251,042,354,246
  5. Step 5: Solve for x
    x = 9,212,251,042,354,246/139,700,135.80
  6. Step 6: Final answer
    x = 65,943,035.70

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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.