Home / 6,912,040.80-10,368,061.20-3,876,290.40

Finding the Fourth Proportional to 6,912,040.80, 10,368,061.20 and 3,876,290.40

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Solution

The fourth proportional to 6,912,040.80, 10,368,061.20 and 3,876,290.40 is: 5,814,435.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912,040.80 : 10,368,061.20 = 3,876,290.40 : x
  2. Step 2: Convert to fraction form
    6,912,040.80/10,368,061.20 = 3,876,290.40/x
  3. Step 3: Cross multiply
    6,912,040.80x = 10,368,061.20 × 3,876,290.40
  4. Step 4: Simplify right side
    6,912,040.80x = 40,189,616,096,172.48
  5. Step 5: Solve for x
    x = 40,189,616,096,172.48/6,912,040.80
  6. Step 6: Final answer
    x = 5,814,435.60

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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.