Home / 12,105,971.56-18,164,305.76-6,347,328.40

Finding the Fourth Proportional to 12,105,971.56, 18,164,305.76 and 6,347,328.40

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Solution

The fourth proportional to 12,105,971.56, 18,164,305.76 and 6,347,328.40 is: 9,523,796.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,105,971.56 : 18,164,305.76 = 6,347,328.40 : x
  2. Step 2: Convert to fraction form
    12,105,971.56/18,164,305.76 = 6,347,328.40/x
  3. Step 3: Cross multiply
    12,105,971.56x = 18,164,305.76 × 6,347,328.40
  4. Step 4: Simplify right side
    12,105,971.56x = 115,294,813,816,731.59
  5. Step 5: Solve for x
    x = 115,294,813,816,731.59/12,105,971.56
  6. Step 6: Final answer
    x = 9,523,796.85

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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.