Home / 387,495,238.44-534,752,250.98-220,205,140.39

Finding the Fourth Proportional to 387,495,238.44, 534,752,250.98 and 220,205,140.39

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Solution

The fourth proportional to 387,495,238.44, 534,752,250.98 and 220,205,140.39 is: 303,888,107.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,495,238.44 : 534,752,250.98 = 220,205,140.39 : x
  2. Step 2: Convert to fraction form
    387,495,238.44/534,752,250.98 = 220,205,140.39/x
  3. Step 3: Cross multiply
    387,495,238.44x = 534,752,250.98 × 220,205,140.39
  4. Step 4: Simplify right side
    387,495,238.44x = 117,755,194,500,919,408
  5. Step 5: Solve for x
    x = 117,755,194,500,919,408/387,495,238.44
  6. Step 6: Final answer
    x = 303,888,107.05

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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.