Home / 402,408,052.80-603,612,079.20-126,082,352.40

Finding the Fourth Proportional to 402,408,052.80, 603,612,079.20 and 126,082,352.40

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Solution

The fourth proportional to 402,408,052.80, 603,612,079.20 and 126,082,352.40 is: 189,123,528.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,408,052.80 : 603,612,079.20 = 126,082,352.40 : x
  2. Step 2: Convert to fraction form
    402,408,052.80/603,612,079.20 = 126,082,352.40/x
  3. Step 3: Cross multiply
    402,408,052.80x = 603,612,079.20 × 126,082,352.40
  4. Step 4: Simplify right side
    402,408,052.80x = 76,104,830,882,591,120
  5. Step 5: Solve for x
    x = 76,104,830,882,591,120/402,408,052.80
  6. Step 6: Final answer
    x = 189,123,528.60

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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.