Home / 81,465,963.60-122,198,945.40-49,101,206.70

Finding the Fourth Proportional to 81,465,963.60, 122,198,945.40 and 49,101,206.70

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Solution

The fourth proportional to 81,465,963.60, 122,198,945.40 and 49,101,206.70 is: 73,651,810.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,465,963.60 : 122,198,945.40 = 49,101,206.70 : x
  2. Step 2: Convert to fraction form
    81,465,963.60/122,198,945.40 = 49,101,206.70/x
  3. Step 3: Cross multiply
    81,465,963.60x = 122,198,945.40 × 49,101,206.70
  4. Step 4: Simplify right side
    81,465,963.60x = 6,000,115,676,607,415
  5. Step 5: Solve for x
    x = 6,000,115,676,607,415/81,465,963.60
  6. Step 6: Final answer
    x = 73,651,810.05

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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.