Home / 18,819,687.29-28,213,089.39-7,297,216.02

Finding the Fourth Proportional to 18,819,687.29, 28,213,089.39 and 7,297,216.02

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Solution

The fourth proportional to 18,819,687.29, 28,213,089.39 and 7,297,216.02 is: 10,939,448.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,819,687.29 : 28,213,089.39 = 7,297,216.02 : x
  2. Step 2: Convert to fraction form
    18,819,687.29/28,213,089.39 = 7,297,216.02/x
  3. Step 3: Cross multiply
    18,819,687.29x = 28,213,089.39 × 7,297,216.02
  4. Step 4: Simplify right side
    18,819,687.29x = 205,877,007,870,400.03
  5. Step 5: Solve for x
    x = 205,877,007,870,400.03/18,819,687.29
  6. Step 6: Final answer
    x = 10,939,448.93

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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.