Home / 122,145,422-168,561,032.28-69,935,258.48

Finding the Fourth Proportional to 122,145,422, 168,561,032.28 and 69,935,258.48

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Solution

The fourth proportional to 122,145,422, 168,561,032.28 and 69,935,258.48 is: 96,510,857.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,145,422 : 168,561,032.28 = 69,935,258.48 : x
  2. Step 2: Convert to fraction form
    122,145,422/168,561,032.28 = 69,935,258.48/x
  3. Step 3: Cross multiply
    122,145,422x = 168,561,032.28 × 69,935,258.48
  4. Step 4: Simplify right side
    122,145,422x = 11,788,359,362,157,424
  5. Step 5: Solve for x
    x = 11,788,359,362,157,424/122,145,422
  6. Step 6: Final answer
    x = 96,510,857.05

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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.