Home / 312,905,104.80-469,525,618.80-131,170,653.60

Finding the Fourth Proportional to 312,905,104.80, 469,525,618.80 and 131,170,653.60

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Solution

The fourth proportional to 312,905,104.80, 469,525,618.80 and 131,170,653.60 is: 196,826,390.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,905,104.80 : 469,525,618.80 = 131,170,653.60 : x
  2. Step 2: Convert to fraction form
    312,905,104.80/469,525,618.80 = 131,170,653.60/x
  3. Step 3: Cross multiply
    312,905,104.80x = 469,525,618.80 × 131,170,653.60
  4. Step 4: Simplify right side
    312,905,104.80x = 61,587,982,299,940,448
  5. Step 5: Solve for x
    x = 61,587,982,299,940,448/312,905,104.80
  6. Step 6: Final answer
    x = 196,826,390.35

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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.