Home / 31,976,994.45-44,142,663.29-20,390,132.37

Finding the Fourth Proportional to 31,976,994.45, 44,142,663.29 and 20,390,132.37

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Solution

The fourth proportional to 31,976,994.45, 44,142,663.29 and 20,390,132.37 is: 28,147,571.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,976,994.45 : 44,142,663.29 = 20,390,132.37 : x
  2. Step 2: Convert to fraction form
    31,976,994.45/44,142,663.29 = 20,390,132.37/x
  3. Step 3: Cross multiply
    31,976,994.45x = 44,142,663.29 × 20,390,132.37
  4. Step 4: Simplify right side
    31,976,994.45x = 900,074,747,545,489
  5. Step 5: Solve for x
    x = 900,074,747,545,489/31,976,994.45
  6. Step 6: Final answer
    x = 28,147,571.81

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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.