Home / 381,085,416.78-525,703,974.56-249,003,628.62

Finding the Fourth Proportional to 381,085,416.78, 525,703,974.56 and 249,003,628.62

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Solution

The fourth proportional to 381,085,416.78, 525,703,974.56 and 249,003,628.62 is: 343,498,311.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,085,416.78 : 525,703,974.56 = 249,003,628.62 : x
  2. Step 2: Convert to fraction form
    381,085,416.78/525,703,974.56 = 249,003,628.62/x
  3. Step 3: Cross multiply
    381,085,416.78x = 525,703,974.56 × 249,003,628.62
  4. Step 4: Simplify right side
    381,085,416.78x = 130,902,197,245,396,176
  5. Step 5: Solve for x
    x = 130,902,197,245,396,176/381,085,416.78
  6. Step 6: Final answer
    x = 343,498,311.62

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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.