Home / 112,112,243.47-154,791,395.94-72,515,755.54

Finding the Fourth Proportional to 112,112,243.47, 154,791,395.94 and 72,515,755.54

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Solution

The fourth proportional to 112,112,243.47, 154,791,395.94 and 72,515,755.54 is: 100,121,223.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,112,243.47 : 154,791,395.94 = 72,515,755.54 : x
  2. Step 2: Convert to fraction form
    112,112,243.47/154,791,395.94 = 72,515,755.54/x
  3. Step 3: Cross multiply
    112,112,243.47x = 154,791,395.94 × 72,515,755.54
  4. Step 4: Simplify right side
    112,112,243.47x = 11,224,815,027,737,550
  5. Step 5: Solve for x
    x = 11,224,815,027,737,550/112,112,243.47
  6. Step 6: Final answer
    x = 100,121,223.88

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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.