Home / 31,976,992.70-44,142,660.87-20,390,130.62

Finding the Fourth Proportional to 31,976,992.70, 44,142,660.87 and 20,390,130.62

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Solution

The fourth proportional to 31,976,992.70, 44,142,660.87 and 20,390,130.62 is: 28,147,569.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,976,992.70 : 44,142,660.87 = 20,390,130.62 : x
  2. Step 2: Convert to fraction form
    31,976,992.70/44,142,660.87 = 20,390,130.62/x
  3. Step 3: Cross multiply
    31,976,992.70x = 44,142,660.87 × 20,390,130.62
  4. Step 4: Simplify right side
    31,976,992.70x = 900,074,621,053,662.88
  5. Step 5: Solve for x
    x = 900,074,621,053,662.88/31,976,992.70
  6. Step 6: Final answer
    x = 28,147,569.39

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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.