Home / 21,200,272.38-31,803,383.16-10,417,997.88

Finding the Fourth Proportional to 21,200,272.38, 31,803,383.16 and 10,417,997.88

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Solution

The fourth proportional to 21,200,272.38, 31,803,383.16 and 10,417,997.88 is: 15,628,458.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,200,272.38 : 31,803,383.16 = 10,417,997.88 : x
  2. Step 2: Convert to fraction form
    21,200,272.38/31,803,383.16 = 10,417,997.88/x
  3. Step 3: Cross multiply
    21,200,272.38x = 31,803,383.16 × 10,417,997.88
  4. Step 4: Simplify right side
    21,200,272.38x = 331,327,578,337,707.75
  5. Step 5: Solve for x
    x = 331,327,578,337,707.75/21,200,272.38
  6. Step 6: Final answer
    x = 15,628,458.56

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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.