Home / 140,134,671.78-193,382,098.80-77,409,419.78

Finding the Fourth Proportional to 140,134,671.78, 193,382,098.80 and 77,409,419.78

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Solution

The fourth proportional to 140,134,671.78, 193,382,098.80 and 77,409,419.78 is: 106,822,928.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,134,671.78 : 193,382,098.80 = 77,409,419.78 : x
  2. Step 2: Convert to fraction form
    140,134,671.78/193,382,098.80 = 77,409,419.78/x
  3. Step 3: Cross multiply
    140,134,671.78x = 193,382,098.80 × 77,409,419.78
  4. Step 4: Simplify right side
    140,134,671.78x = 14,969,596,062,979,726
  5. Step 5: Solve for x
    x = 14,969,596,062,979,726/140,134,671.78
  6. Step 6: Final answer
    x = 106,822,928.78

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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.