Home / 31,504,286.70-47,256,430.05-18,537,126.30

Finding the Fourth Proportional to 31,504,286.70, 47,256,430.05 and 18,537,126.30

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Solution

The fourth proportional to 31,504,286.70, 47,256,430.05 and 18,537,126.30 is: 27,805,689.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,504,286.70 : 47,256,430.05 = 18,537,126.30 : x
  2. Step 2: Convert to fraction form
    31,504,286.70/47,256,430.05 = 18,537,126.30/x
  3. Step 3: Cross multiply
    31,504,286.70x = 47,256,430.05 × 18,537,126.30
  4. Step 4: Simplify right side
    31,504,286.70x = 875,998,412,323,965.25
  5. Step 5: Solve for x
    x = 875,998,412,323,965.25/31,504,286.70
  6. Step 6: Final answer
    x = 27,805,689.45

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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.