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Finding the Fourth Proportional to 998,892,001.80, 1,498,338,002.70 and 930,867,553.80

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Solution

The fourth proportional to 998,892,001.80, 1,498,338,002.70 and 930,867,553.80 is: 1,396,301,330.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,892,001.80 : 1,498,338,002.70 = 930,867,553.80 : x
  2. Step 2: Convert to fraction form
    998,892,001.80/1,498,338,002.70 = 930,867,553.80/x
  3. Step 3: Cross multiply
    998,892,001.80x = 1,498,338,002.70 × 930,867,553.80
  4. Step 4: Simplify right side
    998,892,001.80x = 1,394,754,231,338,926,848
  5. Step 5: Solve for x
    x = 1,394,754,231,338,926,848/998,892,001.80
  6. Step 6: Final answer
    x = 1,396,301,330.70

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Double scale
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1.5x scale

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.