Home / 9,789,992.71-13,509,397.89-5,660,288.78

Finding the Fourth Proportional to 9,789,992.71, 13,509,397.89 and 5,660,288.78

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Solution

The fourth proportional to 9,789,992.71, 13,509,397.89 and 5,660,288.78 is: 7,810,740.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,789,992.71 : 13,509,397.89 = 5,660,288.78 : x
  2. Step 2: Convert to fraction form
    9,789,992.71/13,509,397.89 = 5,660,288.78/x
  3. Step 3: Cross multiply
    9,789,992.71x = 13,509,397.89 × 5,660,288.78
  4. Step 4: Simplify right side
    9,789,992.71x = 76,467,093,233,775.69
  5. Step 5: Solve for x
    x = 76,467,093,233,775.69/9,789,992.71
  6. Step 6: Final answer
    x = 7,810,740.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.