Home / 99,155,093.80-148,732,640.70-80,979,811.60

Finding the Fourth Proportional to 99,155,093.80, 148,732,640.70 and 80,979,811.60

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Solution

The fourth proportional to 99,155,093.80, 148,732,640.70 and 80,979,811.60 is: 121,469,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,155,093.80 : 148,732,640.70 = 80,979,811.60 : x
  2. Step 2: Convert to fraction form
    99,155,093.80/148,732,640.70 = 80,979,811.60/x
  3. Step 3: Cross multiply
    99,155,093.80x = 148,732,640.70 × 80,979,811.60
  4. Step 4: Simplify right side
    99,155,093.80x = 12,044,341,222,656,490
  5. Step 5: Solve for x
    x = 12,044,341,222,656,490/99,155,093.80
  6. Step 6: Final answer
    x = 121,469,717.40

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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.