Home / 21,324,361.86-31,986,503.88-6,947,412.66

Finding the Fourth Proportional to 21,324,361.86, 31,986,503.88 and 6,947,412.66

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Solution

The fourth proportional to 21,324,361.86, 31,986,503.88 and 6,947,412.66 is: 10,421,106.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,324,361.86 : 31,986,503.88 = 6,947,412.66 : x
  2. Step 2: Convert to fraction form
    21,324,361.86/31,986,503.88 = 6,947,412.66/x
  3. Step 3: Cross multiply
    21,324,361.86x = 31,986,503.88 × 6,947,412.66
  4. Step 4: Simplify right side
    21,324,361.86x = 222,223,442,005,051.12
  5. Step 5: Solve for x
    x = 222,223,442,005,051.12/21,324,361.86
  6. Step 6: Final answer
    x = 10,421,106.31

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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.