Home / 387,495,238.70-534,752,251.32-220,205,140.64

Finding the Fourth Proportional to 387,495,238.70, 534,752,251.32 and 220,205,140.64

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Solution

The fourth proportional to 387,495,238.70, 534,752,251.32 and 220,205,140.64 is: 303,888,107.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,495,238.70 : 534,752,251.32 = 220,205,140.64 : x
  2. Step 2: Convert to fraction form
    387,495,238.70/534,752,251.32 = 220,205,140.64/x
  3. Step 3: Cross multiply
    387,495,238.70x = 534,752,251.32 × 220,205,140.64
  4. Step 4: Simplify right side
    387,495,238.70x = 117,755,194,709,477,216
  5. Step 5: Solve for x
    x = 117,755,194,709,477,216/387,495,238.70
  6. Step 6: Final answer
    x = 303,888,107.39

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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.