Home / 18,686,918.70-28,006,758.45-9,081,614.70

Finding the Fourth Proportional to 18,686,918.70, 28,006,758.45 and 9,081,614.70

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Solution

The fourth proportional to 18,686,918.70, 28,006,758.45 and 9,081,614.70 is: 13,610,943.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686,918.70 : 28,006,758.45 = 9,081,614.70 : x
  2. Step 2: Convert to fraction form
    18,686,918.70/28,006,758.45 = 9,081,614.70/x
  3. Step 3: Cross multiply
    18,686,918.70x = 28,006,758.45 × 9,081,614.70
  4. Step 4: Simplify right side
    18,686,918.70x = 254,346,589,238,869.19
  5. Step 5: Solve for x
    x = 254,346,589,238,869.19/18,686,918.70
  6. Step 6: Final answer
    x = 13,610,943.21

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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.