Home / 12,800,398.36-19,200,616.16-5,227,364.12

Finding the Fourth Proportional to 12,800,398.36, 19,200,616.16 and 5,227,364.12

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Solution

The fourth proportional to 12,800,398.36, 19,200,616.16 and 5,227,364.12 is: 7,841,053.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,800,398.36 : 19,200,616.16 = 5,227,364.12 : x
  2. Step 2: Convert to fraction form
    12,800,398.36/19,200,616.16 = 5,227,364.12/x
  3. Step 3: Cross multiply
    12,800,398.36x = 19,200,616.16 × 5,227,364.12
  4. Step 4: Simplify right side
    12,800,398.36x = 100,368,611,996,676.19
  5. Step 5: Solve for x
    x = 100,368,611,996,676.19/12,800,398.36
  6. Step 6: Final answer
    x = 7,841,053.78

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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.