Home / 21,251,849.92-31,867,293.66-8,953,567.72

Finding the Fourth Proportional to 21,251,849.92, 31,867,293.66 and 8,953,567.72

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Solution

The fourth proportional to 21,251,849.92, 31,867,293.66 and 8,953,567.72 is: 13,425,935.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,251,849.92 : 31,867,293.66 = 8,953,567.72 : x
  2. Step 2: Convert to fraction form
    21,251,849.92/31,867,293.66 = 8,953,567.72/x
  3. Step 3: Cross multiply
    21,251,849.92x = 31,867,293.66 × 8,953,567.72
  4. Step 4: Simplify right side
    21,251,849.92x = 285,325,971,837,936.69
  5. Step 5: Solve for x
    x = 285,325,971,837,936.69/21,251,849.92
  6. Step 6: Final answer
    x = 13,425,935.76

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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.