Home / 129,286,255,324.54-178,420,452,633.45-74,353,471,243.76

Finding the Fourth Proportional to 129,286,255,324.54, 178,420,452,633.45 and 74,353,471,243.76

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Solution

The fourth proportional to 129,286,255,324.54, 178,420,452,633.45 and 74,353,471,243.76 is: 102,610,907,562.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,286,255,324.54 : 178,420,452,633.45 = 74,353,471,243.76 : x
  2. Step 2: Convert to fraction form
    129,286,255,324.54/178,420,452,633.45 = 74,353,471,243.76/x
  3. Step 3: Cross multiply
    129,286,255,324.54x = 178,420,452,633.45 × 74,353,471,243.76
  4. Step 4: Simplify right side
    129,286,255,324.54x = 13,266,179,994,180,583,948,288
  5. Step 5: Solve for x
    x = 13,266,179,994,180,583,948,288/129,286,255,324.54
  6. Step 6: Final answer
    x = 102,610,907,562.29

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1.5x scale

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.