Home / 320,354,692.39-442,106,640.57-179,217,493.31

Finding the Fourth Proportional to 320,354,692.39, 442,106,640.57 and 179,217,493.31

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Solution

The fourth proportional to 320,354,692.39, 442,106,640.57 and 179,217,493.31 is: 247,329,743.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,354,692.39 : 442,106,640.57 = 179,217,493.31 : x
  2. Step 2: Convert to fraction form
    320,354,692.39/442,106,640.57 = 179,217,493.31/x
  3. Step 3: Cross multiply
    320,354,692.39x = 442,106,640.57 × 179,217,493.31
  4. Step 4: Simplify right side
    320,354,692.39x = 79,233,243,900,437,888
  5. Step 5: Solve for x
    x = 79,233,243,900,437,888/320,354,692.39
  6. Step 6: Final answer
    x = 247,329,743.51

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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.