Home / 20,147,666,816.70-30,221,500,225.05-9,661,485,581.10

Finding the Fourth Proportional to 20,147,666,816.70, 30,221,500,225.05 and 9,661,485,581.10

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Solution

The fourth proportional to 20,147,666,816.70, 30,221,500,225.05 and 9,661,485,581.10 is: 14,492,228,371.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147,666,816.70 : 30,221,500,225.05 = 9,661,485,581.10 : x
  2. Step 2: Convert to fraction form
    20,147,666,816.70/30,221,500,225.05 = 9,661,485,581.10/x
  3. Step 3: Cross multiply
    20,147,666,816.70x = 30,221,500,225.05 × 9,661,485,581.10
  4. Step 4: Simplify right side
    20,147,666,816.70x = 291,984,588,663,530,979,328
  5. Step 5: Solve for x
    x = 291,984,588,663,530,979,328/20,147,666,816.70
  6. Step 6: Final answer
    x = 14,492,228,371.65

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Double scale
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Similar ratio
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1.5x scale

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.