Home / 6,647,548.80-9,971,323.20-2,160,278.40

Finding the Fourth Proportional to 6,647,548.80, 9,971,323.20 and 2,160,278.40

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Solution

The fourth proportional to 6,647,548.80, 9,971,323.20 and 2,160,278.40 is: 3,240,417.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,647,548.80 : 9,971,323.20 = 2,160,278.40 : x
  2. Step 2: Convert to fraction form
    6,647,548.80/9,971,323.20 = 2,160,278.40/x
  3. Step 3: Cross multiply
    6,647,548.80x = 9,971,323.20 × 2,160,278.40
  4. Step 4: Simplify right side
    6,647,548.80x = 21,540,834,128,378.88
  5. Step 5: Solve for x
    x = 21,540,834,128,378.88/6,647,548.80
  6. Step 6: Final answer
    x = 3,240,417.60

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Similar ratio
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1.5x scale

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.