Home / 787,968,014.20-1,181,952,021.30-357,986,318.20

Finding the Fourth Proportional to 787,968,014.20, 1,181,952,021.30 and 357,986,318.20

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Solution

The fourth proportional to 787,968,014.20, 1,181,952,021.30 and 357,986,318.20 is: 536,979,477.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,968,014.20 : 1,181,952,021.30 = 357,986,318.20 : x
  2. Step 2: Convert to fraction form
    787,968,014.20/1,181,952,021.30 = 357,986,318.20/x
  3. Step 3: Cross multiply
    787,968,014.20x = 1,181,952,021.30 × 357,986,318.20
  4. Step 4: Simplify right side
    787,968,014.20x = 423,122,652,394,234,944
  5. Step 5: Solve for x
    x = 423,122,652,394,234,944/787,968,014.20
  6. Step 6: Final answer
    x = 536,979,477.30

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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.