Home / 127,975,625.12-192,018,739.44-68,818,862.64

Finding the Fourth Proportional to 127,975,625.12, 192,018,739.44 and 68,818,862.64

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Solution

The fourth proportional to 127,975,625.12, 192,018,739.44 and 68,818,862.64 is: 103,258,032.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,975,625.12 : 192,018,739.44 = 68,818,862.64 : x
  2. Step 2: Convert to fraction form
    127,975,625.12/192,018,739.44 = 68,818,862.64/x
  3. Step 3: Cross multiply
    127,975,625.12x = 192,018,739.44 × 68,818,862.64
  4. Step 4: Simplify right side
    127,975,625.12x = 13,214,511,253,827,310
  5. Step 5: Solve for x
    x = 13,214,511,253,827,310/127,975,625.12
  6. Step 6: Final answer
    x = 103,258,032.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.