Home / 2,649,116.40-3,978,340.20-2,565,135.60

Finding the Fourth Proportional to 2,649,116.40, 3,978,340.20 and 2,565,135.60

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Solution

The fourth proportional to 2,649,116.40, 3,978,340.20 and 2,565,135.60 is: 3,852,221.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,649,116.40 : 3,978,340.20 = 2,565,135.60 : x
  2. Step 2: Convert to fraction form
    2,649,116.40/3,978,340.20 = 2,565,135.60/x
  3. Step 3: Cross multiply
    2,649,116.40x = 3,978,340.20 × 2,565,135.60
  4. Step 4: Simplify right side
    2,649,116.40x = 10,204,982,075,931.12
  5. Step 5: Solve for x
    x = 10,204,982,075,931.12/2,649,116.40
  6. Step 6: Final answer
    x = 3,852,221.09

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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.