Home / 19,987,981.03-27,583,423.05-10,820,623.78

Finding the Fourth Proportional to 19,987,981.03, 27,583,423.05 and 10,820,623.78

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Solution

The fourth proportional to 19,987,981.03, 27,583,423.05 and 10,820,623.78 is: 14,932,465.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,987,981.03 : 27,583,423.05 = 10,820,623.78 : x
  2. Step 2: Convert to fraction form
    19,987,981.03/27,583,423.05 = 10,820,623.78/x
  3. Step 3: Cross multiply
    19,987,981.03x = 27,583,423.05 × 10,820,623.78
  4. Step 4: Simplify right side
    19,987,981.03x = 298,469,843,388,630.12
  5. Step 5: Solve for x
    x = 298,469,843,388,630.12/19,987,981.03
  6. Step 6: Final answer
    x = 14,932,465.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.