Home / 676,971,109.38-934,221,229.97-375,556,428.73

Finding the Fourth Proportional to 676,971,109.38, 934,221,229.97 and 375,556,428.73

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Solution

The fourth proportional to 676,971,109.38, 934,221,229.97 and 375,556,428.73 is: 518,268,481.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,971,109.38 : 934,221,229.97 = 375,556,428.73 : x
  2. Step 2: Convert to fraction form
    676,971,109.38/934,221,229.97 = 375,556,428.73/x
  3. Step 3: Cross multiply
    676,971,109.38x = 934,221,229.97 × 375,556,428.73
  4. Step 4: Simplify right side
    676,971,109.38x = 350,852,788,767,067,968
  5. Step 5: Solve for x
    x = 350,852,788,767,067,968/676,971,109.38
  6. Step 6: Final answer
    x = 518,268,481.34

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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.