Home / 80,423,339.60-120,579,936.56-40,955,194.10

Finding the Fourth Proportional to 80,423,339.60, 120,579,936.56 and 40,955,194.10

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Solution

The fourth proportional to 80,423,339.60, 120,579,936.56 and 40,955,194.10 is: 61,404,745.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,423,339.60 : 120,579,936.56 = 40,955,194.10 : x
  2. Step 2: Convert to fraction form
    80,423,339.60/120,579,936.56 = 40,955,194.10/x
  3. Step 3: Cross multiply
    80,423,339.60x = 120,579,936.56 × 40,955,194.10
  4. Step 4: Simplify right side
    80,423,339.60x = 4,938,374,706,289,828
  5. Step 5: Solve for x
    x = 4,938,374,706,289,828/80,423,339.60
  6. Step 6: Final answer
    x = 61,404,745.57

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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.