Home / 31,573,679.78-47,360,521.50-7,639,151.78

Finding the Fourth Proportional to 31,573,679.78, 47,360,521.50 and 7,639,151.78

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Solution

The fourth proportional to 31,573,679.78, 47,360,521.50 and 7,639,151.78 is: 11,458,728.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,573,679.78 : 47,360,521.50 = 7,639,151.78 : x
  2. Step 2: Convert to fraction form
    31,573,679.78/47,360,521.50 = 7,639,151.78/x
  3. Step 3: Cross multiply
    31,573,679.78x = 47,360,521.50 × 7,639,151.78
  4. Step 4: Simplify right side
    31,573,679.78x = 361,794,212,118,453.31
  5. Step 5: Solve for x
    x = 361,794,212,118,453.31/31,573,679.78
  6. Step 6: Final answer
    x = 11,458,728.11

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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.