Home / 6,871,878.60-10,307,817.90-6,479,968.20

Finding the Fourth Proportional to 6,871,878.60, 10,307,817.90 and 6,479,968.20

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Solution

The fourth proportional to 6,871,878.60, 10,307,817.90 and 6,479,968.20 is: 9,719,952.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,871,878.60 : 10,307,817.90 = 6,479,968.20 : x
  2. Step 2: Convert to fraction form
    6,871,878.60/10,307,817.90 = 6,479,968.20/x
  3. Step 3: Cross multiply
    6,871,878.60x = 10,307,817.90 × 6,479,968.20
  4. Step 4: Simplify right side
    6,871,878.60x = 66,794,332,203,390.78
  5. Step 5: Solve for x
    x = 66,794,332,203,390.78/6,871,878.60
  6. Step 6: Final answer
    x = 9,719,952.30

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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.