Home / 140,999,811.84-194,579,205.12-79,120,005.12

Finding the Fourth Proportional to 140,999,811.84, 194,579,205.12 and 79,120,005.12

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Solution

The fourth proportional to 140,999,811.84, 194,579,205.12 and 79,120,005.12 is: 109,185,306.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,999,811.84 : 194,579,205.12 = 79,120,005.12 : x
  2. Step 2: Convert to fraction form
    140,999,811.84/194,579,205.12 = 79,120,005.12/x
  3. Step 3: Cross multiply
    140,999,811.84x = 194,579,205.12 × 79,120,005.12
  4. Step 4: Simplify right side
    140,999,811.84x = 15,395,107,705,339,932
  5. Step 5: Solve for x
    x = 15,395,107,705,339,932/140,999,811.84
  6. Step 6: Final answer
    x = 109,185,306.74

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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.