Home / 1,198,087,987.48-1,653,425,290.12-669,464,805.76

Finding the Fourth Proportional to 1,198,087,987.48, 1,653,425,290.12 and 669,464,805.76

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Solution

The fourth proportional to 1,198,087,987.48, 1,653,425,290.12 and 669,464,805.76 is: 923,897,119.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,087,987.48 : 1,653,425,290.12 = 669,464,805.76 : x
  2. Step 2: Convert to fraction form
    1,198,087,987.48/1,653,425,290.12 = 669,464,805.76/x
  3. Step 3: Cross multiply
    1,198,087,987.48x = 1,653,425,290.12 × 669,464,805.76
  4. Step 4: Simplify right side
    1,198,087,987.48x = 1,106,910,040,688,857,344
  5. Step 5: Solve for x
    x = 1,106,910,040,688,857,344/1,198,087,987.48
  6. Step 6: Final answer
    x = 923,897,119.62

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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.