Home / 18,811,891.02-28,212,713.72-5,161,800.90

Finding the Fourth Proportional to 18,811,891.02, 28,212,713.72 and 5,161,800.90

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Solution

The fourth proportional to 18,811,891.02, 28,212,713.72 and 5,161,800.90 is: 7,741,295.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,811,891.02 : 28,212,713.72 = 5,161,800.90 : x
  2. Step 2: Convert to fraction form
    18,811,891.02/28,212,713.72 = 5,161,800.90/x
  3. Step 3: Cross multiply
    18,811,891.02x = 28,212,713.72 × 5,161,800.90
  4. Step 4: Simplify right side
    18,811,891.02x = 145,628,411,071,338.34
  5. Step 5: Solve for x
    x = 145,628,411,071,338.34/18,811,891.02
  6. Step 6: Final answer
    x = 7,741,295.70

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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.