Home / 251,960,835.40-378,109,214.70-115,576,016.20

Finding the Fourth Proportional to 251,960,835.40, 378,109,214.70 and 115,576,016.20

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Solution

The fourth proportional to 251,960,835.40, 378,109,214.70 and 115,576,016.20 is: 173,441,069.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,960,835.40 : 378,109,214.70 = 115,576,016.20 : x
  2. Step 2: Convert to fraction form
    251,960,835.40/378,109,214.70 = 115,576,016.20/x
  3. Step 3: Cross multiply
    251,960,835.40x = 378,109,214.70 × 115,576,016.20
  4. Step 4: Simplify right side
    251,960,835.40x = 43,700,356,723,536,480
  5. Step 5: Solve for x
    x = 43,700,356,723,536,480/251,960,835.40
  6. Step 6: Final answer
    x = 173,441,069.34

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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.