Home / 38,128,634.12-52,617,889.08-20,724,968.60

Finding the Fourth Proportional to 38,128,634.12, 52,617,889.08 and 20,724,968.60

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Solution

The fourth proportional to 38,128,634.12, 52,617,889.08 and 20,724,968.60 is: 28,600,659.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,128,634.12 : 52,617,889.08 = 20,724,968.60 : x
  2. Step 2: Convert to fraction form
    38,128,634.12/52,617,889.08 = 20,724,968.60/x
  3. Step 3: Cross multiply
    38,128,634.12x = 52,617,889.08 × 20,724,968.60
  4. Step 4: Simplify right side
    38,128,634.12x = 1,090,504,098,981,282.88
  5. Step 5: Solve for x
    x = 1,090,504,098,981,282.88/38,128,634.12
  6. Step 6: Final answer
    x = 28,600,659.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.