Home / 122,207,877.63-168,650,067.36-66,456,558.72

Finding the Fourth Proportional to 122,207,877.63, 168,650,067.36 and 66,456,558.72

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Solution

The fourth proportional to 122,207,877.63, 168,650,067.36 and 66,456,558.72 is: 91,711,789.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,207,877.63 : 168,650,067.36 = 66,456,558.72 : x
  2. Step 2: Convert to fraction form
    122,207,877.63/168,650,067.36 = 66,456,558.72/x
  3. Step 3: Cross multiply
    122,207,877.63x = 168,650,067.36 × 66,456,558.72
  4. Step 4: Simplify right side
    122,207,877.63x = 11,207,903,104,641,796
  5. Step 5: Solve for x
    x = 11,207,903,104,641,796/122,207,877.63
  6. Step 6: Final answer
    x = 91,711,789.14

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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.