Home / 145,378,310.92-200,622,692.80-79,300,249.20

Finding the Fourth Proportional to 145,378,310.92, 200,622,692.80 and 79,300,249.20

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Solution

The fourth proportional to 145,378,310.92, 200,622,692.80 and 79,300,249.20 is: 109,434,684.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,378,310.92 : 200,622,692.80 = 79,300,249.20 : x
  2. Step 2: Convert to fraction form
    145,378,310.92/200,622,692.80 = 79,300,249.20/x
  3. Step 3: Cross multiply
    145,378,310.92x = 200,622,692.80 × 79,300,249.20
  4. Step 4: Simplify right side
    145,378,310.92x = 15,909,429,534,215,048
  5. Step 5: Solve for x
    x = 15,909,429,534,215,048/145,378,310.92
  6. Step 6: Final answer
    x = 109,434,684.13

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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.