Home / 1,176,188,048.80-1,764,282,073.20-485,865,872.80

Finding the Fourth Proportional to 1,176,188,048.80, 1,764,282,073.20 and 485,865,872.80

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Solution

The fourth proportional to 1,176,188,048.80, 1,764,282,073.20 and 485,865,872.80 is: 728,798,809.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176,188,048.80 : 1,764,282,073.20 = 485,865,872.80 : x
  2. Step 2: Convert to fraction form
    1,176,188,048.80/1,764,282,073.20 = 485,865,872.80/x
  3. Step 3: Cross multiply
    1,176,188,048.80x = 1,764,282,073.20 × 485,865,872.80
  4. Step 4: Simplify right side
    1,176,188,048.80x = 857,204,449,360,711,552
  5. Step 5: Solve for x
    x = 857,204,449,360,711,552/1,176,188,048.80
  6. Step 6: Final answer
    x = 728,798,809.20

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Double scale
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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.