Home / 5,307,940.13-7,961,915.66-1,318,852.13

Finding the Fourth Proportional to 5,307,940.13, 7,961,915.66 and 1,318,852.13

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Solution

The fourth proportional to 5,307,940.13, 7,961,915.66 and 1,318,852.13 is: 1,978,279.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,307,940.13 : 7,961,915.66 = 1,318,852.13 : x
  2. Step 2: Convert to fraction form
    5,307,940.13/7,961,915.66 = 1,318,852.13/x
  3. Step 3: Cross multiply
    5,307,940.13x = 7,961,915.66 × 1,318,852.13
  4. Step 4: Simplify right side
    5,307,940.13x = 10,500,589,380,667.52
  5. Step 5: Solve for x
    x = 10,500,589,380,667.52/5,307,940.13
  6. Step 6: Final answer
    x = 1,978,279.55

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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.