Home / 21,097,321.51-31,650,754.79-6,721,208.23

Finding the Fourth Proportional to 21,097,321.51, 31,650,754.79 and 6,721,208.23

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Solution

The fourth proportional to 21,097,321.51, 31,650,754.79 and 6,721,208.23 is: 10,083,332.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,097,321.51 : 31,650,754.79 = 6,721,208.23 : x
  2. Step 2: Convert to fraction form
    21,097,321.51/31,650,754.79 = 6,721,208.23/x
  3. Step 3: Cross multiply
    21,097,321.51x = 31,650,754.79 × 6,721,208.23
  4. Step 4: Simplify right side
    21,097,321.51x = 212,731,313,467,527
  5. Step 5: Solve for x
    x = 212,731,313,467,527/21,097,321.51
  6. Step 6: Final answer
    x = 10,083,332.78

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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.