Home / 171,907,221.30-257,293,961.55-120,888,885.30

Finding the Fourth Proportional to 171,907,221.30, 257,293,961.55 and 120,888,885.30

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Solution

The fourth proportional to 171,907,221.30, 257,293,961.55 and 120,888,885.30 is: 180,934,692.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,907,221.30 : 257,293,961.55 = 120,888,885.30 : x
  2. Step 2: Convert to fraction form
    171,907,221.30/257,293,961.55 = 120,888,885.30/x
  3. Step 3: Cross multiply
    171,907,221.30x = 257,293,961.55 × 120,888,885.30
  4. Step 4: Simplify right side
    171,907,221.30x = 31,103,980,206,200,560
  5. Step 5: Solve for x
    x = 31,103,980,206,200,560/171,907,221.30
  6. Step 6: Final answer
    x = 180,934,692.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.