Home / 128,758,528.80-193,172,007.60-55,944,064.80

Finding the Fourth Proportional to 128,758,528.80, 193,172,007.60 and 55,944,064.80

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Solution

The fourth proportional to 128,758,528.80, 193,172,007.60 and 55,944,064.80 is: 83,930,962.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,758,528.80 : 193,172,007.60 = 55,944,064.80 : x
  2. Step 2: Convert to fraction form
    128,758,528.80/193,172,007.60 = 55,944,064.80/x
  3. Step 3: Cross multiply
    128,758,528.80x = 193,172,007.60 × 55,944,064.80
  4. Step 4: Simplify right side
    128,758,528.80x = 10,806,827,310,720,492
  5. Step 5: Solve for x
    x = 10,806,827,310,720,492/128,758,528.80
  6. Step 6: Final answer
    x = 83,930,962.95

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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.