Home / 144,443,692.24-199,332,673.82-78,364,187.08

Finding the Fourth Proportional to 144,443,692.24, 199,332,673.82 and 78,364,187.08

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Solution

The fourth proportional to 144,443,692.24, 199,332,673.82 and 78,364,187.08 is: 108,142,783.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,443,692.24 : 199,332,673.82 = 78,364,187.08 : x
  2. Step 2: Convert to fraction form
    144,443,692.24/199,332,673.82 = 78,364,187.08/x
  3. Step 3: Cross multiply
    144,443,692.24x = 199,332,673.82 × 78,364,187.08
  4. Step 4: Simplify right side
    144,443,692.24x = 15,620,542,942,387,098
  5. Step 5: Solve for x
    x = 15,620,542,942,387,098/144,443,692.24
  6. Step 6: Final answer
    x = 108,142,783.53

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1.5x scale

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.