Home / 868,695,040,984.75-1,198,799,352,236.40-478,061,604,750.55

Finding the Fourth Proportional to 868,695,040,984.75, 1,198,799,352,236.40 and 478,061,604,750.55

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Solution

The fourth proportional to 868,695,040,984.75, 1,198,799,352,236.40 and 478,061,604,750.55 is: 659,725,122,241.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,695,040,984.75 : 1,198,799,352,236.40 = 478,061,604,750.55 : x
  2. Step 2: Convert to fraction form
    868,695,040,984.75/1,198,799,352,236.40 = 478,061,604,750.55/x
  3. Step 3: Cross multiply
    868,695,040,984.75x = 1,198,799,352,236.40 × 478,061,604,750.55
  4. Step 4: Simplify right side
    868,695,040,984.75x = 573,099,942,104,053,195,997,184
  5. Step 5: Solve for x
    x = 573,099,942,104,053,195,997,184/868,695,040,984.75
  6. Step 6: Final answer
    x = 659,725,122,241.28

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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.