Home / 30,267,289,230.30-45,400,933,845.45-20,852,971,347.60

Finding the Fourth Proportional to 30,267,289,230.30, 45,400,933,845.45 and 20,852,971,347.60

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Solution

The fourth proportional to 30,267,289,230.30, 45,400,933,845.45 and 20,852,971,347.60 is: 31,279,457,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,267,289,230.30 : 45,400,933,845.45 = 20,852,971,347.60 : x
  2. Step 2: Convert to fraction form
    30,267,289,230.30/45,400,933,845.45 = 20,852,971,347.60/x
  3. Step 3: Cross multiply
    30,267,289,230.30x = 45,400,933,845.45 × 20,852,971,347.60
  4. Step 4: Simplify right side
    30,267,289,230.30x = 946,744,372,633,451,757,568
  5. Step 5: Solve for x
    x = 946,744,372,633,451,757,568/30,267,289,230.30
  6. Step 6: Final answer
    x = 31,279,457,021.40

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Double scale
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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.