Home / 42,410,015.20-63,615,022.80-20,847,944.80

Finding the Fourth Proportional to 42,410,015.20, 63,615,022.80 and 20,847,944.80

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Solution

The fourth proportional to 42,410,015.20, 63,615,022.80 and 20,847,944.80 is: 31,271,917.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,410,015.20 : 63,615,022.80 = 20,847,944.80 : x
  2. Step 2: Convert to fraction form
    42,410,015.20/63,615,022.80 = 20,847,944.80/x
  3. Step 3: Cross multiply
    42,410,015.20x = 63,615,022.80 × 20,847,944.80
  4. Step 4: Simplify right side
    42,410,015.20x = 1,326,242,483,785,141.50
  5. Step 5: Solve for x
    x = 1,326,242,483,785,141.50/42,410,015.20
  6. Step 6: Final answer
    x = 31,271,917.20

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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.