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Finding the Fourth Proportional to 68,619,765.70, 103,009,364.70 and 41,356,842.40

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Solution

The fourth proportional to 68,619,765.70, 103,009,364.70 and 41,356,842.40 is: 62,083,308.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,619,765.70 : 103,009,364.70 = 41,356,842.40 : x
  2. Step 2: Convert to fraction form
    68,619,765.70/103,009,364.70 = 41,356,842.40/x
  3. Step 3: Cross multiply
    68,619,765.70x = 103,009,364.70 × 41,356,842.40
  4. Step 4: Simplify right side
    68,619,765.70x = 4,260,142,061,622,023
  5. Step 5: Solve for x
    x = 4,260,142,061,622,023/68,619,765.70
  6. Step 6: Final answer
    x = 62,083,308.19

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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.