Home / 12,800,316.64-19,200,493.43-5,227,282.39

Finding the Fourth Proportional to 12,800,316.64, 19,200,493.43 and 5,227,282.39

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Solution

The fourth proportional to 12,800,316.64, 19,200,493.43 and 5,227,282.39 is: 7,840,931.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,800,316.64 : 19,200,493.43 = 5,227,282.39 : x
  2. Step 2: Convert to fraction form
    12,800,316.64/19,200,493.43 = 5,227,282.39/x
  3. Step 3: Cross multiply
    12,800,316.64x = 19,200,493.43 × 5,227,282.39
  4. Step 4: Simplify right side
    12,800,316.64x = 100,366,401,151,016.67
  5. Step 5: Solve for x
    x = 100,366,401,151,016.67/12,800,316.64
  6. Step 6: Final answer
    x = 7,840,931.13

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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.