Home / 18,436,998.30-27,655,497.45-12,763,628.70

Finding the Fourth Proportional to 18,436,998.30, 27,655,497.45 and 12,763,628.70

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Solution

The fourth proportional to 18,436,998.30, 27,655,497.45 and 12,763,628.70 is: 19,145,443.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,436,998.30 : 27,655,497.45 = 12,763,628.70 : x
  2. Step 2: Convert to fraction form
    18,436,998.30/27,655,497.45 = 12,763,628.70/x
  3. Step 3: Cross multiply
    18,436,998.30x = 27,655,497.45 × 12,763,628.70
  4. Step 4: Simplify right side
    18,436,998.30x = 352,984,500,965,596.81
  5. Step 5: Solve for x
    x = 352,984,500,965,596.81/18,436,998.30
  6. Step 6: Final answer
    x = 19,145,443.05

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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.