Home / 90,195,081.33-135,293,072.40-31,902,813.03

Finding the Fourth Proportional to 90,195,081.33, 135,293,072.40 and 31,902,813.03

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Solution

The fourth proportional to 90,195,081.33, 135,293,072.40 and 31,902,813.03 is: 47,854,378.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,195,081.33 : 135,293,072.40 = 31,902,813.03 : x
  2. Step 2: Convert to fraction form
    90,195,081.33/135,293,072.40 = 31,902,813.03/x
  3. Step 3: Cross multiply
    90,195,081.33x = 135,293,072.40 × 31,902,813.03
  4. Step 4: Simplify right side
    90,195,081.33x = 4,316,229,593,031,453.50
  5. Step 5: Solve for x
    x = 4,316,229,593,031,453.50/90,195,081.33
  6. Step 6: Final answer
    x = 47,854,378.86

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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.