Home / 355,472,513.02-490,354,589.19-206,776,894.78

Finding the Fourth Proportional to 355,472,513.02, 490,354,589.19 and 206,776,894.78

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Solution

The fourth proportional to 355,472,513.02, 490,354,589.19 and 206,776,894.78 is: 285,237,242.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,472,513.02 : 490,354,589.19 = 206,776,894.78 : x
  2. Step 2: Convert to fraction form
    355,472,513.02/490,354,589.19 = 206,776,894.78/x
  3. Step 3: Cross multiply
    355,472,513.02x = 490,354,589.19 × 206,776,894.78
  4. Step 4: Simplify right side
    355,472,513.02x = 101,393,999,293,830,752
  5. Step 5: Solve for x
    x = 101,393,999,293,830,752/355,472,513.02
  6. Step 6: Final answer
    x = 285,237,242.21

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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.