Home / 9,912,172.79-13,678,583.24-5,725,861.13

Finding the Fourth Proportional to 9,912,172.79, 13,678,583.24 and 5,725,861.13

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Solution

The fourth proportional to 9,912,172.79, 13,678,583.24 and 5,725,861.13 is: 7,901,564.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,912,172.79 : 13,678,583.24 = 5,725,861.13 : x
  2. Step 2: Convert to fraction form
    9,912,172.79/13,678,583.24 = 5,725,861.13/x
  3. Step 3: Cross multiply
    9,912,172.79x = 13,678,583.24 × 5,725,861.13
  4. Step 4: Simplify right side
    9,912,172.79x = 78,321,667,990,363.23
  5. Step 5: Solve for x
    x = 78,321,667,990,363.23/9,912,172.79
  6. Step 6: Final answer
    x = 7,901,564.04

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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.