Home / 7,225,019.78-9,970,522.34-3,961,890.09

Finding the Fourth Proportional to 7,225,019.78, 9,970,522.34 and 3,961,890.09

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Solution

The fourth proportional to 7,225,019.78, 9,970,522.34 and 3,961,890.09 is: 5,467,405.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,225,019.78 : 9,970,522.34 = 3,961,890.09 : x
  2. Step 2: Convert to fraction form
    7,225,019.78/9,970,522.34 = 3,961,890.09/x
  3. Step 3: Cross multiply
    7,225,019.78x = 9,970,522.34 × 3,961,890.09
  4. Step 4: Simplify right side
    7,225,019.78x = 39,502,113,631,160.16
  5. Step 5: Solve for x
    x = 39,502,113,631,160.16/7,225,019.78
  6. Step 6: Final answer
    x = 5,467,405.61

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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.