Home / 80,905,107.18-121,374,456.93-27,051,019.50

Finding the Fourth Proportional to 80,905,107.18, 121,374,456.93 and 27,051,019.50

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Solution

The fourth proportional to 80,905,107.18, 121,374,456.93 and 27,051,019.50 is: 40,582,145.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,905,107.18 : 121,374,456.93 = 27,051,019.50 : x
  2. Step 2: Convert to fraction form
    80,905,107.18/121,374,456.93 = 27,051,019.50/x
  3. Step 3: Cross multiply
    80,905,107.18x = 121,374,456.93 × 27,051,019.50
  4. Step 4: Simplify right side
    80,905,107.18x = 3,283,302,801,215,340.50
  5. Step 5: Solve for x
    x = 3,283,302,801,215,340.50/80,905,107.18
  6. Step 6: Final answer
    x = 40,582,145.13

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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.