Home / 129,373,408.40-194,060,112.60-43,114,629.20

Finding the Fourth Proportional to 129,373,408.40, 194,060,112.60 and 43,114,629.20

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Solution

The fourth proportional to 129,373,408.40, 194,060,112.60 and 43,114,629.20 is: 64,671,943.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,373,408.40 : 194,060,112.60 = 43,114,629.20 : x
  2. Step 2: Convert to fraction form
    129,373,408.40/194,060,112.60 = 43,114,629.20/x
  3. Step 3: Cross multiply
    129,373,408.40x = 194,060,112.60 × 43,114,629.20
  4. Step 4: Simplify right side
    129,373,408.40x = 8,366,829,797,259,248
  5. Step 5: Solve for x
    x = 8,366,829,797,259,248/129,373,408.40
  6. Step 6: Final answer
    x = 64,671,943.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.