Home / 891,030,176,446.78-1,229,621,776,144.30-485,040,799,834.30

Finding the Fourth Proportional to 891,030,176,446.78, 1,229,621,776,144.30 and 485,040,799,834.30

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Solution

The fourth proportional to 891,030,176,446.78, 1,229,621,776,144.30 and 485,040,799,834.30 is: 669,356,375,979.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,030,176,446.78 : 1,229,621,776,144.30 = 485,040,799,834.30 : x
  2. Step 2: Convert to fraction form
    891,030,176,446.78/1,229,621,776,144.30 = 485,040,799,834.30/x
  3. Step 3: Cross multiply
    891,030,176,446.78x = 1,229,621,776,144.30 × 485,040,799,834.30
  4. Step 4: Simplify right side
    891,030,176,446.78x = 596,416,729,794,703,901,327,360
  5. Step 5: Solve for x
    x = 596,416,729,794,703,901,327,360/891,030,176,446.78
  6. Step 6: Final answer
    x = 669,356,375,979.40

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Double scale
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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.