Home / 868,695,040,989.23-1,198,799,352,242.80-478,061,604,755.15

Finding the Fourth Proportional to 868,695,040,989.23, 1,198,799,352,242.80 and 478,061,604,755.15

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Solution

The fourth proportional to 868,695,040,989.23, 1,198,799,352,242.80 and 478,061,604,755.15 is: 659,725,122,247.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,695,040,989.23 : 1,198,799,352,242.80 = 478,061,604,755.15 : x
  2. Step 2: Convert to fraction form
    868,695,040,989.23/1,198,799,352,242.80 = 478,061,604,755.15/x
  3. Step 3: Cross multiply
    868,695,040,989.23x = 1,198,799,352,242.80 × 478,061,604,755.15
  4. Step 4: Simplify right side
    868,695,040,989.23x = 573,099,942,112,627,360,006,144
  5. Step 5: Solve for x
    x = 573,099,942,112,627,360,006,144/868,695,040,989.23
  6. Step 6: Final answer
    x = 659,725,122,247.74

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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.