Home / 20,965,021.73-31,455,099.48-7,320,178.34

Finding the Fourth Proportional to 20,965,021.73, 31,455,099.48 and 7,320,178.34

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Solution

The fourth proportional to 20,965,021.73, 31,455,099.48 and 7,320,178.34 is: 10,982,909.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,965,021.73 : 31,455,099.48 = 7,320,178.34 : x
  2. Step 2: Convert to fraction form
    20,965,021.73/31,455,099.48 = 7,320,178.34/x
  3. Step 3: Cross multiply
    20,965,021.73x = 31,455,099.48 × 7,320,178.34
  4. Step 4: Simplify right side
    20,965,021.73x = 230,256,937,896,041.25
  5. Step 5: Solve for x
    x = 230,256,937,896,041.25/20,965,021.73
  6. Step 6: Final answer
    x = 10,982,909.57

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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.