Home / 420,684,993.42-580,575,332.37-232,509,243.43

Finding the Fourth Proportional to 420,684,993.42, 580,575,332.37 and 232,509,243.43

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Solution

The fourth proportional to 420,684,993.42, 580,575,332.37 and 232,509,243.43 is: 320,879,359.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,684,993.42 : 580,575,332.37 = 232,509,243.43 : x
  2. Step 2: Convert to fraction form
    420,684,993.42/580,575,332.37 = 232,509,243.43/x
  3. Step 3: Cross multiply
    420,684,993.42x = 580,575,332.37 × 232,509,243.43
  4. Step 4: Simplify right side
    420,684,993.42x = 134,989,131,283,469,488
  5. Step 5: Solve for x
    x = 134,989,131,283,469,488/420,684,993.42
  6. Step 6: Final answer
    x = 320,879,359.60

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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.