Home / 870,993,481.20-1,306,490,221.80-296,564,809.20

Finding the Fourth Proportional to 870,993,481.20, 1,306,490,221.80 and 296,564,809.20

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Solution

The fourth proportional to 870,993,481.20, 1,306,490,221.80 and 296,564,809.20 is: 444,847,213.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,993,481.20 : 1,306,490,221.80 = 296,564,809.20 : x
  2. Step 2: Convert to fraction form
    870,993,481.20/1,306,490,221.80 = 296,564,809.20/x
  3. Step 3: Cross multiply
    870,993,481.20x = 1,306,490,221.80 × 296,564,809.20
  4. Step 4: Simplify right side
    870,993,481.20x = 387,459,023,349,782,656
  5. Step 5: Solve for x
    x = 387,459,023,349,782,656/870,993,481.20
  6. Step 6: Final answer
    x = 444,847,213.80

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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.