Home / 31,504,290.40-47,161,957.20-18,718,213.60

Finding the Fourth Proportional to 31,504,290.40, 47,161,957.20 and 18,718,213.60

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Solution

The fourth proportional to 31,504,290.40, 47,161,957.20 and 18,718,213.60 is: 28,021,186.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,504,290.40 : 47,161,957.20 = 18,718,213.60 : x
  2. Step 2: Convert to fraction form
    31,504,290.40/47,161,957.20 = 18,718,213.60/x
  3. Step 3: Cross multiply
    31,504,290.40x = 47,161,957.20 × 18,718,213.60
  4. Step 4: Simplify right side
    31,504,290.40x = 882,787,588,663,658
  5. Step 5: Solve for x
    x = 882,787,588,663,658/31,504,290.40
  6. Step 6: Final answer
    x = 28,021,186.24

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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.