Home / 285,476,998.77-393,977,751.54-161,718,692.85

Finding the Fourth Proportional to 285,476,998.77, 393,977,751.54 and 161,718,692.85

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Solution

The fourth proportional to 285,476,998.77, 393,977,751.54 and 161,718,692.85 is: 223,182,838.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,476,998.77 : 393,977,751.54 = 161,718,692.85 : x
  2. Step 2: Convert to fraction form
    285,476,998.77/393,977,751.54 = 161,718,692.85/x
  3. Step 3: Cross multiply
    285,476,998.77x = 393,977,751.54 × 161,718,692.85
  4. Step 4: Simplify right side
    285,476,998.77x = 63,713,566,991,030,872
  5. Step 5: Solve for x
    x = 63,713,566,991,030,872/285,476,998.77
  6. Step 6: Final answer
    x = 223,182,838.78

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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.