Home / 12,954,350.40-19,431,525.60-3,978,902.40

Finding the Fourth Proportional to 12,954,350.40, 19,431,525.60 and 3,978,902.40

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Solution

The fourth proportional to 12,954,350.40, 19,431,525.60 and 3,978,902.40 is: 5,968,353.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,954,350.40 : 19,431,525.60 = 3,978,902.40 : x
  2. Step 2: Convert to fraction form
    12,954,350.40/19,431,525.60 = 3,978,902.40/x
  3. Step 3: Cross multiply
    12,954,350.40x = 19,431,525.60 × 3,978,902.40
  4. Step 4: Simplify right side
    12,954,350.40x = 77,316,143,845,501.44
  5. Step 5: Solve for x
    x = 77,316,143,845,501.44/12,954,350.40
  6. Step 6: Final answer
    x = 5,968,353.60

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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.