Home / 20,761,527.15-28,651,777.94-11,940,980.87

Finding the Fourth Proportional to 20,761,527.15, 28,651,777.94 and 11,940,980.87

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Solution

The fourth proportional to 20,761,527.15, 28,651,777.94 and 11,940,980.87 is: 16,479,054.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,761,527.15 : 28,651,777.94 = 11,940,980.87 : x
  2. Step 2: Convert to fraction form
    20,761,527.15/28,651,777.94 = 11,940,980.87/x
  3. Step 3: Cross multiply
    20,761,527.15x = 28,651,777.94 × 11,940,980.87
  4. Step 4: Simplify right side
    20,761,527.15x = 342,130,332,374,509.94
  5. Step 5: Solve for x
    x = 342,130,332,374,509.94/20,761,527.15
  6. Step 6: Final answer
    x = 16,479,054.26

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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.