Home / 28,685,259-39,585,658.23-15,808,203

Finding the Fourth Proportional to 28,685,259, 39,585,658.23 and 15,808,203

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Solution

The fourth proportional to 28,685,259, 39,585,658.23 and 15,808,203 is: 21,815,320.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,685,259 : 39,585,658.23 = 15,808,203 : x
  2. Step 2: Convert to fraction form
    28,685,259/39,585,658.23 = 15,808,203/x
  3. Step 3: Cross multiply
    28,685,259x = 39,585,658.23 × 15,808,203
  4. Step 4: Simplify right side
    28,685,259x = 625,778,121,188,460.62
  5. Step 5: Solve for x
    x = 625,778,121,188,460.62/28,685,259
  6. Step 6: Final answer
    x = 21,815,320.59

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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.