Home / 15,347,205.96-21,179,645.50-8,378,255.10

Finding the Fourth Proportional to 15,347,205.96, 21,179,645.50 and 8,378,255.10

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Solution

The fourth proportional to 15,347,205.96, 21,179,645.50 and 8,378,255.10 is: 11,562,265.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,347,205.96 : 21,179,645.50 = 8,378,255.10 : x
  2. Step 2: Convert to fraction form
    15,347,205.96/21,179,645.50 = 8,378,255.10/x
  3. Step 3: Cross multiply
    15,347,205.96x = 21,179,645.50 × 8,378,255.10
  4. Step 4: Simplify right side
    15,347,205.96x = 177,448,472,926,567.03
  5. Step 5: Solve for x
    x = 177,448,472,926,567.03/15,347,205.96
  6. Step 6: Final answer
    x = 11,562,265.69

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Double scale
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1.5x scale

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.