Home / 128,634,238.73-177,516,372.47-69,896,902.43

Finding the Fourth Proportional to 128,634,238.73, 177,516,372.47 and 69,896,902.43

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Solution

The fourth proportional to 128,634,238.73, 177,516,372.47 and 69,896,902.43 is: 96,458,335.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,634,238.73 : 177,516,372.47 = 69,896,902.43 : x
  2. Step 2: Convert to fraction form
    128,634,238.73/177,516,372.47 = 69,896,902.43/x
  3. Step 3: Cross multiply
    128,634,238.73x = 177,516,372.47 × 69,896,902.43
  4. Step 4: Simplify right side
    128,634,238.73x = 12,407,844,565,026,062
  5. Step 5: Solve for x
    x = 12,407,844,565,026,062/128,634,238.73
  6. Step 6: Final answer
    x = 96,458,335.57

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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.