Home / 154,115,658.24-212,689,163.52-85,438,026.24

Finding the Fourth Proportional to 154,115,658.24, 212,689,163.52 and 85,438,026.24

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Solution

The fourth proportional to 154,115,658.24, 212,689,163.52 and 85,438,026.24 is: 117,909,773.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,115,658.24 : 212,689,163.52 = 85,438,026.24 : x
  2. Step 2: Convert to fraction form
    154,115,658.24/212,689,163.52 = 85,438,026.24/x
  3. Step 3: Cross multiply
    154,115,658.24x = 212,689,163.52 × 85,438,026.24
  4. Step 4: Simplify right side
    154,115,658.24x = 18,171,742,333,785,412
  5. Step 5: Solve for x
    x = 18,171,742,333,785,412/154,115,658.24
  6. Step 6: Final answer
    x = 117,909,773.36

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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.