Home / 787,968,000.80-1,181,952,001.20-357,986,304.80

Finding the Fourth Proportional to 787,968,000.80, 1,181,952,001.20 and 357,986,304.80

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Solution

The fourth proportional to 787,968,000.80, 1,181,952,001.20 and 357,986,304.80 is: 536,979,457.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,968,000.80 : 1,181,952,001.20 = 357,986,304.80 : x
  2. Step 2: Convert to fraction form
    787,968,000.80/1,181,952,001.20 = 357,986,304.80/x
  3. Step 3: Cross multiply
    787,968,000.80x = 1,181,952,001.20 × 357,986,304.80
  4. Step 4: Simplify right side
    787,968,000.80x = 423,122,629,360,553,216
  5. Step 5: Solve for x
    x = 423,122,629,360,553,216/787,968,000.80
  6. Step 6: Final answer
    x = 536,979,457.20

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Double scale
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Similar ratio
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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.