Home / 122,130,164.88-168,540,929.64-66,375,585

Finding the Fourth Proportional to 122,130,164.88, 168,540,929.64 and 66,375,585

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Solution

The fourth proportional to 122,130,164.88, 168,540,929.64 and 66,375,585 is: 91,599,014.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,130,164.88 : 168,540,929.64 = 66,375,585 : x
  2. Step 2: Convert to fraction form
    122,130,164.88/168,540,929.64 = 66,375,585/x
  3. Step 3: Cross multiply
    122,130,164.88x = 168,540,929.64 × 66,375,585
  4. Step 4: Simplify right side
    122,130,164.88x = 11,187,002,801,298,838
  5. Step 5: Solve for x
    x = 11,187,002,801,298,838/122,130,164.88
  6. Step 6: Final answer
    x = 91,599,014.97

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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.