Home / 6,438,008.40-9,657,012.60-4,198,520.40

Finding the Fourth Proportional to 6,438,008.40, 9,657,012.60 and 4,198,520.40

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Solution

The fourth proportional to 6,438,008.40, 9,657,012.60 and 4,198,520.40 is: 6,297,780.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438,008.40 : 9,657,012.60 = 4,198,520.40 : x
  2. Step 2: Convert to fraction form
    6,438,008.40/9,657,012.60 = 4,198,520.40/x
  3. Step 3: Cross multiply
    6,438,008.40x = 9,657,012.60 × 4,198,520.40
  4. Step 4: Simplify right side
    6,438,008.40x = 40,545,164,404,157.04
  5. Step 5: Solve for x
    x = 40,545,164,404,157.04/6,438,008.40
  6. Step 6: Final answer
    x = 6,297,780.60

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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.