Home / 18,701,969.92-28,066,839.53-14,158,739.86

Finding the Fourth Proportional to 18,701,969.92, 28,066,839.53 and 14,158,739.86

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Solution

The fourth proportional to 18,701,969.92, 28,066,839.53 and 14,158,739.86 is: 21,248,621.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,701,969.92 : 28,066,839.53 = 14,158,739.86 : x
  2. Step 2: Convert to fraction form
    18,701,969.92/28,066,839.53 = 14,158,739.86/x
  3. Step 3: Cross multiply
    18,701,969.92x = 28,066,839.53 × 14,158,739.86
  4. Step 4: Simplify right side
    18,701,969.92x = 397,391,079,456,673.88
  5. Step 5: Solve for x
    x = 397,391,079,456,673.88/18,701,969.92
  6. Step 6: Final answer
    x = 21,248,621.47

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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.