Home / 38,759,952,003.20-58,139,928,004.80-21,128,015,081.60

Finding the Fourth Proportional to 38,759,952,003.20, 58,139,928,004.80 and 21,128,015,081.60

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Solution

The fourth proportional to 38,759,952,003.20, 58,139,928,004.80 and 21,128,015,081.60 is: 31,692,022,622.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,759,952,003.20 : 58,139,928,004.80 = 21,128,015,081.60 : x
  2. Step 2: Convert to fraction form
    38,759,952,003.20/58,139,928,004.80 = 21,128,015,081.60/x
  3. Step 3: Cross multiply
    38,759,952,003.20x = 58,139,928,004.80 × 21,128,015,081.60
  4. Step 4: Simplify right side
    38,759,952,003.20x = 1,228,381,275,728,552,656,896
  5. Step 5: Solve for x
    x = 1,228,381,275,728,552,656,896/38,759,952,003.20
  6. Step 6: Final answer
    x = 31,692,022,622.40

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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.