Home / 355,003,329.12-489,895,195.71-198,371,723.19

Finding the Fourth Proportional to 355,003,329.12, 489,895,195.71 and 198,371,723.19

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Solution

The fourth proportional to 355,003,329.12, 489,895,195.71 and 198,371,723.19 is: 273,747,726.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,003,329.12 : 489,895,195.71 = 198,371,723.19 : x
  2. Step 2: Convert to fraction form
    355,003,329.12/489,895,195.71 = 198,371,723.19/x
  3. Step 3: Cross multiply
    355,003,329.12x = 489,895,195.71 × 198,371,723.19
  4. Step 4: Simplify right side
    355,003,329.12x = 97,181,354,155,494,992
  5. Step 5: Solve for x
    x = 97,181,354,155,494,992/355,003,329.12
  6. Step 6: Final answer
    x = 273,747,726.24

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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.