Home / 28,685,341-39,585,771.39-15,808,285

Finding the Fourth Proportional to 28,685,341, 39,585,771.39 and 15,808,285

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Solution

The fourth proportional to 28,685,341, 39,585,771.39 and 15,808,285 is: 21,815,433.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,685,341 : 39,585,771.39 = 15,808,285 : x
  2. Step 2: Convert to fraction form
    28,685,341/39,585,771.39 = 15,808,285/x
  3. Step 3: Cross multiply
    28,685,341x = 39,585,771.39 × 15,808,285
  4. Step 4: Simplify right side
    28,685,341x = 625,783,156,077,966.12
  5. Step 5: Solve for x
    x = 625,783,156,077,966.12/28,685,341
  6. Step 6: Final answer
    x = 21,815,433.75

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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.