Home / 128,505,641,049.40-177,150,881,512.11-89,804,404,325.02

Finding the Fourth Proportional to 128,505,641,049.40, 177,150,881,512.11 and 89,804,404,325.02

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Solution

The fourth proportional to 128,505,641,049.40, 177,150,881,512.11 and 89,804,404,325.02 is: 123,799,463,275.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,505,641,049.40 : 177,150,881,512.11 = 89,804,404,325.02 : x
  2. Step 2: Convert to fraction form
    128,505,641,049.40/177,150,881,512.11 = 89,804,404,325.02/x
  3. Step 3: Cross multiply
    128,505,641,049.40x = 177,150,881,512.11 × 89,804,404,325.02
  4. Step 4: Simplify right side
    128,505,641,049.40x = 15,908,929,389,847,944,101,888
  5. Step 5: Solve for x
    x = 15,908,929,389,847,944,101,888/128,505,641,049.40
  6. Step 6: Final answer
    x = 123,799,463,275.95

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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.