Home / 21,239,013.23-31,845,706.04-8,109,288.47

Finding the Fourth Proportional to 21,239,013.23, 31,845,706.04 and 8,109,288.47

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Solution

The fourth proportional to 21,239,013.23, 31,845,706.04 and 8,109,288.47 is: 12,159,040.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,239,013.23 : 31,845,706.04 = 8,109,288.47 : x
  2. Step 2: Convert to fraction form
    21,239,013.23/31,845,706.04 = 8,109,288.47/x
  3. Step 3: Cross multiply
    21,239,013.23x = 31,845,706.04 × 8,109,288.47
  4. Step 4: Simplify right side
    21,239,013.23x = 258,246,016,670,226.06
  5. Step 5: Solve for x
    x = 258,246,016,670,226.06/21,239,013.23
  6. Step 6: Final answer
    x = 12,159,040.25

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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.