Home / 868,695,040,983.38-1,198,799,352,234.40-478,061,604,749.18

Finding the Fourth Proportional to 868,695,040,983.38, 1,198,799,352,234.40 and 478,061,604,749.18

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Solution

The fourth proportional to 868,695,040,983.38, 1,198,799,352,234.40 and 478,061,604,749.18 is: 659,725,122,239.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,695,040,983.38 : 1,198,799,352,234.40 = 478,061,604,749.18 : x
  2. Step 2: Convert to fraction form
    868,695,040,983.38/1,198,799,352,234.40 = 478,061,604,749.18/x
  3. Step 3: Cross multiply
    868,695,040,983.38x = 1,198,799,352,234.40 × 478,061,604,749.18
  4. Step 4: Simplify right side
    868,695,040,983.38x = 573,099,942,101,454,673,674,240
  5. Step 5: Solve for x
    x = 573,099,942,101,454,673,674,240/868,695,040,983.38
  6. Step 6: Final answer
    x = 659,725,122,239.32

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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.