Home / 122,301,863.75-168,712,255.82-72,706,959.32

Finding the Fourth Proportional to 122,301,863.75, 168,712,255.82 and 72,706,959.32

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Solution

The fourth proportional to 122,301,863.75, 168,712,255.82 and 72,706,959.32 is: 100,297,368.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,301,863.75 : 168,712,255.82 = 72,706,959.32 : x
  2. Step 2: Convert to fraction form
    122,301,863.75/168,712,255.82 = 72,706,959.32/x
  3. Step 3: Cross multiply
    122,301,863.75x = 168,712,255.82 × 72,706,959.32
  4. Step 4: Simplify right side
    122,301,863.75x = 12,266,555,120,028,378
  5. Step 5: Solve for x
    x = 12,266,555,120,028,378/122,301,863.75
  6. Step 6: Final answer
    x = 100,297,368.69

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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.