Home / 862,776,941.40-1,294,165,412.10-280,530,181.80

Finding the Fourth Proportional to 862,776,941.40, 1,294,165,412.10 and 280,530,181.80

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Solution

The fourth proportional to 862,776,941.40, 1,294,165,412.10 and 280,530,181.80 is: 420,795,272.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,776,941.40 : 1,294,165,412.10 = 280,530,181.80 : x
  2. Step 2: Convert to fraction form
    862,776,941.40/1,294,165,412.10 = 280,530,181.80/x
  3. Step 3: Cross multiply
    862,776,941.40x = 1,294,165,412.10 × 280,530,181.80
  4. Step 4: Simplify right side
    862,776,941.40x = 363,052,458,335,684,928
  5. Step 5: Solve for x
    x = 363,052,458,335,684,928/862,776,941.40
  6. Step 6: Final answer
    x = 420,795,272.70

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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.