Home / 128,695,561,628.07-177,599,904,036.02-70,823,941,445.25

Finding the Fourth Proportional to 128,695,561,628.07, 177,599,904,036.02 and 70,823,941,445.25

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Solution

The fourth proportional to 128,695,561,628.07, 177,599,904,036.02 and 70,823,941,445.25 is: 97,737,055,147.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,695,561,628.07 : 177,599,904,036.02 = 70,823,941,445.25 : x
  2. Step 2: Convert to fraction form
    128,695,561,628.07/177,599,904,036.02 = 70,823,941,445.25/x
  3. Step 3: Cross multiply
    128,695,561,628.07x = 177,599,904,036.02 × 70,823,941,445.25
  4. Step 4: Simplify right side
    128,695,561,628.07x = 12,578,325,204,129,099,546,624
  5. Step 5: Solve for x
    x = 12,578,325,204,129,099,546,624/128,695,561,628.07
  6. Step 6: Final answer
    x = 97,737,055,147.87

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1.5x scale

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.