Home / 28,685,252.25-39,585,648.92-15,808,196.25

Finding the Fourth Proportional to 28,685,252.25, 39,585,648.92 and 15,808,196.25

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Solution

The fourth proportional to 28,685,252.25, 39,585,648.92 and 15,808,196.25 is: 21,815,311.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,685,252.25 : 39,585,648.92 = 15,808,196.25 : x
  2. Step 2: Convert to fraction form
    28,685,252.25/39,585,648.92 = 15,808,196.25/x
  3. Step 3: Cross multiply
    28,685,252.25x = 39,585,648.92 × 15,808,196.25
  4. Step 4: Simplify right side
    28,685,252.25x = 625,777,706,731,919.50
  5. Step 5: Solve for x
    x = 625,777,706,731,919.50/28,685,252.25
  6. Step 6: Final answer
    x = 21,815,311.27

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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.