Home / 21,282,507.38-31,923,761.49-5,108,458.65

Finding the Fourth Proportional to 21,282,507.38, 31,923,761.49 and 5,108,458.65

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Solution

The fourth proportional to 21,282,507.38, 31,923,761.49 and 5,108,458.65 is: 7,662,688.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,282,507.38 : 31,923,761.49 = 5,108,458.65 : x
  2. Step 2: Convert to fraction form
    21,282,507.38/31,923,761.49 = 5,108,458.65/x
  3. Step 3: Cross multiply
    21,282,507.38x = 31,923,761.49 × 5,108,458.65
  4. Step 4: Simplify right side
    21,282,507.38x = 163,081,215,524,127.41
  5. Step 5: Solve for x
    x = 163,081,215,524,127.41/21,282,507.38
  6. Step 6: Final answer
    x = 7,662,688.08

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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.