Home / 585,384,328.89-807,859,970.69-321,090,914.43

Finding the Fourth Proportional to 585,384,328.89, 807,859,970.69 and 321,090,914.43

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Solution

The fourth proportional to 585,384,328.89, 807,859,970.69 and 321,090,914.43 is: 443,121,696.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,384,328.89 : 807,859,970.69 = 321,090,914.43 : x
  2. Step 2: Convert to fraction form
    585,384,328.89/807,859,970.69 = 321,090,914.43/x
  3. Step 3: Cross multiply
    585,384,328.89x = 807,859,970.69 × 321,090,914.43
  4. Step 4: Simplify right side
    585,384,328.89x = 259,396,496,718,639,616
  5. Step 5: Solve for x
    x = 259,396,496,718,639,616/585,384,328.89
  6. Step 6: Final answer
    x = 443,121,696.15

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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.