Home / 580,320,020.40-870,480,030.60-396,654,010.80

Finding the Fourth Proportional to 580,320,020.40, 870,480,030.60 and 396,654,010.80

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Solution

The fourth proportional to 580,320,020.40, 870,480,030.60 and 396,654,010.80 is: 594,981,016.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,320,020.40 : 870,480,030.60 = 396,654,010.80 : x
  2. Step 2: Convert to fraction form
    580,320,020.40/870,480,030.60 = 396,654,010.80/x
  3. Step 3: Cross multiply
    580,320,020.40x = 870,480,030.60 × 396,654,010.80
  4. Step 4: Simplify right side
    580,320,020.40x = 345,279,395,458,796,736
  5. Step 5: Solve for x
    x = 345,279,395,458,796,736/580,320,020.40
  6. Step 6: Final answer
    x = 594,981,016.20

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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.