Home / 20,725,019.91-31,072,176.99-9,932,043.69

Finding the Fourth Proportional to 20,725,019.91, 31,072,176.99 and 9,932,043.69

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Solution

The fourth proportional to 20,725,019.91, 31,072,176.99 and 9,932,043.69 is: 14,890,707.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725,019.91 : 31,072,176.99 = 9,932,043.69 : x
  2. Step 2: Convert to fraction form
    20,725,019.91/31,072,176.99 = 9,932,043.69/x
  3. Step 3: Cross multiply
    20,725,019.91x = 31,072,176.99 × 9,932,043.69
  4. Step 4: Simplify right side
    20,725,019.91x = 308,610,219,408,092.69
  5. Step 5: Solve for x
    x = 308,610,219,408,092.69/20,725,019.91
  6. Step 6: Final answer
    x = 14,890,707.98

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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.