Home / 21,228,342.59-31,836,356.25-8,271,603.38

Finding the Fourth Proportional to 21,228,342.59, 31,836,356.25 and 8,271,603.38

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Solution

The fourth proportional to 21,228,342.59, 31,836,356.25 and 8,271,603.38 is: 12,405,005.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,228,342.59 : 31,836,356.25 = 8,271,603.38 : x
  2. Step 2: Convert to fraction form
    21,228,342.59/31,836,356.25 = 8,271,603.38/x
  3. Step 3: Cross multiply
    21,228,342.59x = 31,836,356.25 × 8,271,603.38
  4. Step 4: Simplify right side
    21,228,342.59x = 263,337,711,805,202.34
  5. Step 5: Solve for x
    x = 263,337,711,805,202.34/21,228,342.59
  6. Step 6: Final answer
    x = 12,405,005.75

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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.