Home / 72,608,445,324.04-100,199,654,740.02-39,231,116,172.04

Finding the Fourth Proportional to 72,608,445,324.04, 100,199,654,740.02 and 39,231,116,172.04

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Solution

The fourth proportional to 72,608,445,324.04, 100,199,654,740.02 and 39,231,116,172.04 is: 54,138,940,421.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,608,445,324.04 : 100,199,654,740.02 = 39,231,116,172.04 : x
  2. Step 2: Convert to fraction form
    72,608,445,324.04/100,199,654,740.02 = 39,231,116,172.04/x
  3. Step 3: Cross multiply
    72,608,445,324.04x = 100,199,654,740.02 × 39,231,116,172.04
  4. Step 4: Simplify right side
    72,608,445,324.04x = 3,930,944,295,504,023,388,160
  5. Step 5: Solve for x
    x = 3,930,944,295,504,023,388,160/72,608,445,324.04
  6. Step 6: Final answer
    x = 54,138,940,421.61

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.