Home / 47,303,998.20-70,955,997.30-20,430,142.20

Finding the Fourth Proportional to 47,303,998.20, 70,955,997.30 and 20,430,142.20

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Solution

The fourth proportional to 47,303,998.20, 70,955,997.30 and 20,430,142.20 is: 30,645,213.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,303,998.20 : 70,955,997.30 = 20,430,142.20 : x
  2. Step 2: Convert to fraction form
    47,303,998.20/70,955,997.30 = 20,430,142.20/x
  3. Step 3: Cross multiply
    47,303,998.20x = 70,955,997.30 × 20,430,142.20
  4. Step 4: Simplify right side
    47,303,998.20x = 1,449,641,114,781,816
  5. Step 5: Solve for x
    x = 1,449,641,114,781,816/47,303,998.20
  6. Step 6: Final answer
    x = 30,645,213.30

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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.