Home / 12,771,703.28-19,147,382.56-7,374,231.20

Finding the Fourth Proportional to 12,771,703.28, 19,147,382.56 and 7,374,231.20

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Solution

The fourth proportional to 12,771,703.28, 19,147,382.56 and 7,374,231.20 is: 11,055,473.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771,703.28 : 19,147,382.56 = 7,374,231.20 : x
  2. Step 2: Convert to fraction form
    12,771,703.28/19,147,382.56 = 7,374,231.20/x
  3. Step 3: Cross multiply
    12,771,703.28x = 19,147,382.56 × 7,374,231.20
  4. Step 4: Simplify right side
    12,771,703.28x = 141,197,225,872,287.88
  5. Step 5: Solve for x
    x = 141,197,225,872,287.88/12,771,703.28
  6. Step 6: Final answer
    x = 11,055,473.40

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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.