Home / 20,861,616,397.60-31,305,295,769.12-9,667,404,040.24

Finding the Fourth Proportional to 20,861,616,397.60, 31,305,295,769.12 and 9,667,404,040.24

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Solution

The fourth proportional to 20,861,616,397.60, 31,305,295,769.12 and 9,667,404,040.24 is: 14,507,070,642.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,861,616,397.60 : 31,305,295,769.12 = 9,667,404,040.24 : x
  2. Step 2: Convert to fraction form
    20,861,616,397.60/31,305,295,769.12 = 9,667,404,040.24/x
  3. Step 3: Cross multiply
    20,861,616,397.60x = 31,305,295,769.12 × 9,667,404,040.24
  4. Step 4: Simplify right side
    20,861,616,397.60x = 302,640,942,799,298,822,144
  5. Step 5: Solve for x
    x = 302,640,942,799,298,822,144/20,861,616,397.60
  6. Step 6: Final answer
    x = 14,507,070,642.62

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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.