Home / 387,495,235.94-534,752,247.53-220,205,137.89

Finding the Fourth Proportional to 387,495,235.94, 534,752,247.53 and 220,205,137.89

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Solution

The fourth proportional to 387,495,235.94, 534,752,247.53 and 220,205,137.89 is: 303,888,103.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,495,235.94 : 534,752,247.53 = 220,205,137.89 : x
  2. Step 2: Convert to fraction form
    387,495,235.94/534,752,247.53 = 220,205,137.89/x
  3. Step 3: Cross multiply
    387,495,235.94x = 534,752,247.53 × 220,205,137.89
  4. Step 4: Simplify right side
    387,495,235.94x = 117,755,192,403,230,016
  5. Step 5: Solve for x
    x = 117,755,192,403,230,016/387,495,235.94
  6. Step 6: Final answer
    x = 303,888,103.60

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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.