Home / 20,724,783.20-31,086,883.20-9,365,213.60

Finding the Fourth Proportional to 20,724,783.20, 31,086,883.20 and 9,365,213.60

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Solution

The fourth proportional to 20,724,783.20, 31,086,883.20 and 9,365,213.60 is: 14,047,688.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724,783.20 : 31,086,883.20 = 9,365,213.60 : x
  2. Step 2: Convert to fraction form
    20,724,783.20/31,086,883.20 = 9,365,213.60/x
  3. Step 3: Cross multiply
    20,724,783.20x = 31,086,883.20 × 9,365,213.60
  4. Step 4: Simplify right side
    20,724,783.20x = 291,135,301,326,251.50
  5. Step 5: Solve for x
    x = 291,135,301,326,251.50/20,724,783.20
  6. Step 6: Final answer
    x = 14,047,688.63

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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.