Home / 7,221,110.60-9,965,112.09-3,957,915.24

Finding the Fourth Proportional to 7,221,110.60, 9,965,112.09 and 3,957,915.24

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Solution

The fourth proportional to 7,221,110.60, 9,965,112.09 and 3,957,915.24 is: 5,461,911.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221,110.60 : 9,965,112.09 = 3,957,915.24 : x
  2. Step 2: Convert to fraction form
    7,221,110.60/9,965,112.09 = 3,957,915.24/x
  3. Step 3: Cross multiply
    7,221,110.60x = 9,965,112.09 × 3,957,915.24
  4. Step 4: Simplify right side
    7,221,110.60x = 39,441,069,009,319.25
  5. Step 5: Solve for x
    x = 39,441,069,009,319.25/7,221,110.60
  6. Step 6: Final answer
    x = 5,461,911.78

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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.