Home / 20,126,232,345.80-30,189,348,518.70-5,405,741,798.60

Finding the Fourth Proportional to 20,126,232,345.80, 30,189,348,518.70 and 5,405,741,798.60

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Solution

The fourth proportional to 20,126,232,345.80, 30,189,348,518.70 and 5,405,741,798.60 is: 8,108,612,697.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,126,232,345.80 : 30,189,348,518.70 = 5,405,741,798.60 : x
  2. Step 2: Convert to fraction form
    20,126,232,345.80/30,189,348,518.70 = 5,405,741,798.60/x
  3. Step 3: Cross multiply
    20,126,232,345.80x = 30,189,348,518.70 × 5,405,741,798.60
  4. Step 4: Simplify right side
    20,126,232,345.80x = 163,195,823,160,039,604,224
  5. Step 5: Solve for x
    x = 163,195,823,160,039,604,224/20,126,232,345.80
  6. Step 6: Final answer
    x = 8,108,612,697.90

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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.