Home / 6,439,917.40-9,659,876.10-3,920,493.40

Finding the Fourth Proportional to 6,439,917.40, 9,659,876.10 and 3,920,493.40

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Solution

The fourth proportional to 6,439,917.40, 9,659,876.10 and 3,920,493.40 is: 5,880,740.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439,917.40 : 9,659,876.10 = 3,920,493.40 : x
  2. Step 2: Convert to fraction form
    6,439,917.40/9,659,876.10 = 3,920,493.40/x
  3. Step 3: Cross multiply
    6,439,917.40x = 9,659,876.10 × 3,920,493.40
  4. Step 4: Simplify right side
    6,439,917.40x = 37,871,480,494,867.73
  5. Step 5: Solve for x
    x = 37,871,480,494,867.73/6,439,917.40
  6. Step 6: Final answer
    x = 5,880,740.10

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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.