Home / 76,658,521.20-114,945,791.40-31,168,921.20

Finding the Fourth Proportional to 76,658,521.20, 114,945,791.40 and 31,168,921.20

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Solution

The fourth proportional to 76,658,521.20, 114,945,791.40 and 31,168,921.20 is: 46,736,308.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,658,521.20 : 114,945,791.40 = 31,168,921.20 : x
  2. Step 2: Convert to fraction form
    76,658,521.20/114,945,791.40 = 31,168,921.20/x
  3. Step 3: Cross multiply
    76,658,521.20x = 114,945,791.40 × 31,168,921.20
  4. Step 4: Simplify right side
    76,658,521.20x = 3,582,736,314,418,238
  5. Step 5: Solve for x
    x = 3,582,736,314,418,238/76,658,521.20
  6. Step 6: Final answer
    x = 46,736,308.74

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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.