Home / 138,080,801,415.09-190,523,869,780.32-77,103,786,418.01

Finding the Fourth Proportional to 138,080,801,415.09, 190,523,869,780.32 and 77,103,786,418.01

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Solution

The fourth proportional to 138,080,801,415.09, 190,523,869,780.32 and 77,103,786,418.01 is: 106,387,793,324.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,080,801,415.09 : 190,523,869,780.32 = 77,103,786,418.01 : x
  2. Step 2: Convert to fraction form
    138,080,801,415.09/190,523,869,780.32 = 77,103,786,418.01/x
  3. Step 3: Cross multiply
    138,080,801,415.09x = 190,523,869,780.32 × 77,103,786,418.01
  4. Step 4: Simplify right side
    138,080,801,415.09x = 14,690,111,763,074,542,206,976
  5. Step 5: Solve for x
    x = 14,690,111,763,074,542,206,976/138,080,801,415.09
  6. Step 6: Final answer
    x = 106,387,793,324.82

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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.