Home / 785,178,115,961.80-1,176,117,808,333.20-498,188,448,000.42

Finding the Fourth Proportional to 785,178,115,961.80, 1,176,117,808,333.20 and 498,188,448,000.42

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Solution

The fourth proportional to 785,178,115,961.80, 1,176,117,808,333.20 and 498,188,448,000.42 is: 746,236,164,365.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,178,115,961.80 : 1,176,117,808,333.20 = 498,188,448,000.42 : x
  2. Step 2: Convert to fraction form
    785,178,115,961.80/1,176,117,808,333.20 = 498,188,448,000.42/x
  3. Step 3: Cross multiply
    785,178,115,961.80x = 1,176,117,808,333.20 × 498,188,448,000.42
  4. Step 4: Simplify right side
    785,178,115,961.80x = 585,928,305,599,172,321,476,608
  5. Step 5: Solve for x
    x = 585,928,305,599,172,321,476,608/785,178,115,961.80
  6. Step 6: Final answer
    x = 746,236,164,365.64

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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.