Home / 839,815,387.20-1,259,723,080.80-788,755,060.80

Finding the Fourth Proportional to 839,815,387.20, 1,259,723,080.80 and 788,755,060.80

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Solution

The fourth proportional to 839,815,387.20, 1,259,723,080.80 and 788,755,060.80 is: 1,183,132,591.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,815,387.20 : 1,259,723,080.80 = 788,755,060.80 : x
  2. Step 2: Convert to fraction form
    839,815,387.20/1,259,723,080.80 = 788,755,060.80/x
  3. Step 3: Cross multiply
    839,815,387.20x = 1,259,723,080.80 × 788,755,060.80
  4. Step 4: Simplify right side
    839,815,387.20x = 993,612,955,187,567,232
  5. Step 5: Solve for x
    x = 993,612,955,187,567,232/839,815,387.20
  6. Step 6: Final answer
    x = 1,183,132,591.20

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Double scale
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1.5x scale

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.