Home / 122,454,072,263.64-168,986,618,351.12-66,129,829,319.64

Finding the Fourth Proportional to 122,454,072,263.64, 168,986,618,351.12 and 66,129,829,319.64

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Solution

The fourth proportional to 122,454,072,263.64, 168,986,618,351.12 and 66,129,829,319.64 is: 91,259,163,719.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,454,072,263.64 : 168,986,618,351.12 = 66,129,829,319.64 : x
  2. Step 2: Convert to fraction form
    122,454,072,263.64/168,986,618,351.12 = 66,129,829,319.64/x
  3. Step 3: Cross multiply
    122,454,072,263.64x = 168,986,618,351.12 × 66,129,829,319.64
  4. Step 4: Simplify right side
    122,454,072,263.64x = 11,175,056,228,862,708,940,800
  5. Step 5: Solve for x
    x = 11,175,056,228,862,708,940,800/122,454,072,263.64
  6. Step 6: Final answer
    x = 91,259,163,719.79

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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.