Home / 840,890,461.20-1,152,000,674.52-809,451,257.28

Finding the Fourth Proportional to 840,890,461.20, 1,152,000,674.52 and 809,451,257.28

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Solution

The fourth proportional to 840,890,461.20, 1,152,000,674.52 and 809,451,257.28 is: 1,108,929,685.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,890,461.20 : 1,152,000,674.52 = 809,451,257.28 : x
  2. Step 2: Convert to fraction form
    840,890,461.20/1,152,000,674.52 = 809,451,257.28/x
  3. Step 3: Cross multiply
    840,890,461.20x = 1,152,000,674.52 × 809,451,257.28
  4. Step 4: Simplify right side
    840,890,461.20x = 932,488,394,377,622,016
  5. Step 5: Solve for x
    x = 932,488,394,377,622,016/840,890,461.20
  6. Step 6: Final answer
    x = 1,108,929,685.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.