Home / 4,986,965.16-6,885,427.14-3,178,578.60

Finding the Fourth Proportional to 4,986,965.16, 6,885,427.14 and 3,178,578.60

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Solution

The fourth proportional to 4,986,965.16, 6,885,427.14 and 3,178,578.60 is: 4,388,615.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986,965.16 : 6,885,427.14 = 3,178,578.60 : x
  2. Step 2: Convert to fraction form
    4,986,965.16/6,885,427.14 = 3,178,578.60/x
  3. Step 3: Cross multiply
    4,986,965.16x = 6,885,427.14 × 3,178,578.60
  4. Step 4: Simplify right side
    4,986,965.16x = 21,885,871,359,063.20
  5. Step 5: Solve for x
    x = 21,885,871,359,063.20/4,986,965.16
  6. Step 6: Final answer
    x = 4,388,615.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.