Home / 279,437,712.40-419,156,568.60-126,382,704.40

Finding the Fourth Proportional to 279,437,712.40, 419,156,568.60 and 126,382,704.40

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Solution

The fourth proportional to 279,437,712.40, 419,156,568.60 and 126,382,704.40 is: 189,574,056.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,437,712.40 : 419,156,568.60 = 126,382,704.40 : x
  2. Step 2: Convert to fraction form
    279,437,712.40/419,156,568.60 = 126,382,704.40/x
  3. Step 3: Cross multiply
    279,437,712.40x = 419,156,568.60 × 126,382,704.40
  4. Step 4: Simplify right side
    279,437,712.40x = 52,974,140,706,692,128
  5. Step 5: Solve for x
    x = 52,974,140,706,692,128/279,437,712.40
  6. Step 6: Final answer
    x = 189,574,056.60

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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.