Home / 389,267,382.28-537,131,202.78-236,424,361

Finding the Fourth Proportional to 389,267,382.28, 537,131,202.78 and 236,424,361

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Solution

The fourth proportional to 389,267,382.28, 537,131,202.78 and 236,424,361 is: 326,230,522.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,267,382.28 : 537,131,202.78 = 236,424,361 : x
  2. Step 2: Convert to fraction form
    389,267,382.28/537,131,202.78 = 236,424,361/x
  3. Step 3: Cross multiply
    389,267,382.28x = 537,131,202.78 × 236,424,361
  4. Step 4: Simplify right side
    389,267,382.28x = 126,990,901,390,422,912
  5. Step 5: Solve for x
    x = 126,990,901,390,422,912/389,267,382.28
  6. Step 6: Final answer
    x = 326,230,522.18

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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.