Home / 31,794,979.20-47,698,689.60-13,599,139.20

Finding the Fourth Proportional to 31,794,979.20, 47,698,689.60 and 13,599,139.20

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Solution

The fourth proportional to 31,794,979.20, 47,698,689.60 and 13,599,139.20 is: 20,401,369.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,794,979.20 : 47,698,689.60 = 13,599,139.20 : x
  2. Step 2: Convert to fraction form
    31,794,979.20/47,698,689.60 = 13,599,139.20/x
  3. Step 3: Cross multiply
    31,794,979.20x = 47,698,689.60 × 13,599,139.20
  4. Step 4: Simplify right side
    31,794,979.20x = 648,661,119,527,992.25
  5. Step 5: Solve for x
    x = 648,661,119,527,992.25/31,794,979.20
  6. Step 6: Final answer
    x = 20,401,369.52

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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.