Home / 11,821,987.80-17,732,981.70-4,631,131.80

Finding the Fourth Proportional to 11,821,987.80, 17,732,981.70 and 4,631,131.80

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Solution

The fourth proportional to 11,821,987.80, 17,732,981.70 and 4,631,131.80 is: 6,946,697.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821,987.80 : 17,732,981.70 = 4,631,131.80 : x
  2. Step 2: Convert to fraction form
    11,821,987.80/17,732,981.70 = 4,631,131.80/x
  3. Step 3: Cross multiply
    11,821,987.80x = 17,732,981.70 × 4,631,131.80
  4. Step 4: Simplify right side
    11,821,987.80x = 82,123,775,459,688.05
  5. Step 5: Solve for x
    x = 82,123,775,459,688.05/11,821,987.80
  6. Step 6: Final answer
    x = 6,946,697.70

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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.