Home / 12,917,511.20-19,376,266.80-5,743,057.70

Finding the Fourth Proportional to 12,917,511.20, 19,376,266.80 and 5,743,057.70

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Solution

The fourth proportional to 12,917,511.20, 19,376,266.80 and 5,743,057.70 is: 8,614,586.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,917,511.20 : 19,376,266.80 = 5,743,057.70 : x
  2. Step 2: Convert to fraction form
    12,917,511.20/19,376,266.80 = 5,743,057.70/x
  3. Step 3: Cross multiply
    12,917,511.20x = 19,376,266.80 × 5,743,057.70
  4. Step 4: Simplify right side
    12,917,511.20x = 111,279,018,242,994.38
  5. Step 5: Solve for x
    x = 111,279,018,242,994.38/12,917,511.20
  6. Step 6: Final answer
    x = 8,614,586.55

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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.