Home / 15,206,640.12-20,984,988.42-8,237,184.60

Finding the Fourth Proportional to 15,206,640.12, 20,984,988.42 and 8,237,184.60

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Solution

The fourth proportional to 15,206,640.12, 20,984,988.42 and 8,237,184.60 is: 11,367,219.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,206,640.12 : 20,984,988.42 = 8,237,184.60 : x
  2. Step 2: Convert to fraction form
    15,206,640.12/20,984,988.42 = 8,237,184.60/x
  3. Step 3: Cross multiply
    15,206,640.12x = 20,984,988.42 × 8,237,184.60
  4. Step 4: Simplify right side
    15,206,640.12x = 172,857,223,444,402.34
  5. Step 5: Solve for x
    x = 172,857,223,444,402.34/15,206,640.12
  6. Step 6: Final answer
    x = 11,367,219.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.