Home / 20,816,119.05-31,242,114.69-14,430,855.43

Finding the Fourth Proportional to 20,816,119.05, 31,242,114.69 and 14,430,855.43

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Solution

The fourth proportional to 20,816,119.05, 31,242,114.69 and 14,430,855.43 is: 21,658,717.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,816,119.05 : 31,242,114.69 = 14,430,855.43 : x
  2. Step 2: Convert to fraction form
    20,816,119.05/31,242,114.69 = 14,430,855.43/x
  3. Step 3: Cross multiply
    20,816,119.05x = 31,242,114.69 × 14,430,855.43
  4. Step 4: Simplify right side
    20,816,119.05x = 450,850,440,418,869.25
  5. Step 5: Solve for x
    x = 450,850,440,418,869.25/20,816,119.05
  6. Step 6: Final answer
    x = 21,658,717.43

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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.