Home / 28,671,975.80-39,567,309.16-15,794,919.80

Finding the Fourth Proportional to 28,671,975.80, 39,567,309.16 and 15,794,919.80

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Solution

The fourth proportional to 28,671,975.80, 39,567,309.16 and 15,794,919.80 is: 21,796,979.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,671,975.80 : 39,567,309.16 = 15,794,919.80 : x
  2. Step 2: Convert to fraction form
    28,671,975.80/39,567,309.16 = 15,794,919.80/x
  3. Step 3: Cross multiply
    28,671,975.80x = 39,567,309.16 × 15,794,919.80
  4. Step 4: Simplify right side
    28,671,975.80x = 624,962,474,884,005.38
  5. Step 5: Solve for x
    x = 624,962,474,884,005.38/28,671,975.80
  6. Step 6: Final answer
    x = 21,796,979.71

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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.