Home / 128,695,561,627.70-177,599,904,035.49-70,823,941,444.87

Finding the Fourth Proportional to 128,695,561,627.70, 177,599,904,035.49 and 70,823,941,444.87

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Solution

The fourth proportional to 128,695,561,627.70, 177,599,904,035.49 and 70,823,941,444.87 is: 97,737,055,147.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,695,561,627.70 : 177,599,904,035.49 = 70,823,941,444.87 : x
  2. Step 2: Convert to fraction form
    128,695,561,627.70/177,599,904,035.49 = 70,823,941,444.87/x
  3. Step 3: Cross multiply
    128,695,561,627.70x = 177,599,904,035.49 × 70,823,941,444.87
  4. Step 4: Simplify right side
    128,695,561,627.70x = 12,578,325,204,023,187,079,168
  5. Step 5: Solve for x
    x = 12,578,325,204,023,187,079,168/128,695,561,627.70
  6. Step 6: Final answer
    x = 97,737,055,147.33

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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.