Home / 18,090,500.85-27,136,785.69-5,135,638.21

Finding the Fourth Proportional to 18,090,500.85, 27,136,785.69 and 5,135,638.21

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Solution

The fourth proportional to 18,090,500.85, 27,136,785.69 and 5,135,638.21 is: 7,703,750.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090,500.85 : 27,136,785.69 = 5,135,638.21 : x
  2. Step 2: Convert to fraction form
    18,090,500.85/27,136,785.69 = 5,135,638.21/x
  3. Step 3: Cross multiply
    18,090,500.85x = 27,136,785.69 × 5,135,638.21
  4. Step 4: Simplify right side
    18,090,500.85x = 139,364,713,418,303.25
  5. Step 5: Solve for x
    x = 139,364,713,418,303.25/18,090,500.85
  6. Step 6: Final answer
    x = 7,703,750.97

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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.