Home / 215,686,969.20-323,530,453.80-161,939,257.20

Finding the Fourth Proportional to 215,686,969.20, 323,530,453.80 and 161,939,257.20

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Solution

The fourth proportional to 215,686,969.20, 323,530,453.80 and 161,939,257.20 is: 242,908,885.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,686,969.20 : 323,530,453.80 = 161,939,257.20 : x
  2. Step 2: Convert to fraction form
    215,686,969.20/323,530,453.80 = 161,939,257.20/x
  3. Step 3: Cross multiply
    215,686,969.20x = 323,530,453.80 × 161,939,257.20
  4. Step 4: Simplify right side
    215,686,969.20x = 52,392,281,369,950,912
  5. Step 5: Solve for x
    x = 52,392,281,369,950,912/215,686,969.20
  6. Step 6: Final answer
    x = 242,908,885.80

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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.