Home / 239,958,330.40-331,140,847.20-129,947,525.92

Finding the Fourth Proportional to 239,958,330.40, 331,140,847.20 and 129,947,525.92

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Solution

The fourth proportional to 239,958,330.40, 331,140,847.20 and 129,947,525.92 is: 179,326,692.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,958,330.40 : 331,140,847.20 = 129,947,525.92 : x
  2. Step 2: Convert to fraction form
    239,958,330.40/331,140,847.20 = 129,947,525.92/x
  3. Step 3: Cross multiply
    239,958,330.40x = 331,140,847.20 × 129,947,525.92
  4. Step 4: Simplify right side
    239,958,330.40x = 43,030,933,824,692,760
  5. Step 5: Solve for x
    x = 43,030,933,824,692,760/239,958,330.40
  6. Step 6: Final answer
    x = 179,326,692.90

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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.