Home / 280,584,004.60-420,876,006.90-159,651,652.60

Finding the Fourth Proportional to 280,584,004.60, 420,876,006.90 and 159,651,652.60

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Solution

The fourth proportional to 280,584,004.60, 420,876,006.90 and 159,651,652.60 is: 239,477,478.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,584,004.60 : 420,876,006.90 = 159,651,652.60 : x
  2. Step 2: Convert to fraction form
    280,584,004.60/420,876,006.90 = 159,651,652.60/x
  3. Step 3: Cross multiply
    280,584,004.60x = 420,876,006.90 × 159,651,652.60
  4. Step 4: Simplify right side
    280,584,004.60x = 67,193,550,041,274,000
  5. Step 5: Solve for x
    x = 67,193,550,041,274,000/280,584,004.60
  6. Step 6: Final answer
    x = 239,477,478.90

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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.