Home / 20,130,739.20-30,172,489.20-8,616,184.20

Finding the Fourth Proportional to 20,130,739.20, 30,172,489.20 and 8,616,184.20

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Solution

The fourth proportional to 20,130,739.20, 30,172,489.20 and 8,616,184.20 is: 12,914,166.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,130,739.20 : 30,172,489.20 = 8,616,184.20 : x
  2. Step 2: Convert to fraction form
    20,130,739.20/30,172,489.20 = 8,616,184.20/x
  3. Step 3: Cross multiply
    20,130,739.20x = 30,172,489.20 × 8,616,184.20
  4. Step 4: Simplify right side
    20,130,739.20x = 259,971,724,719,710.62
  5. Step 5: Solve for x
    x = 259,971,724,719,710.62/20,130,739.20
  6. Step 6: Final answer
    x = 12,914,166.84

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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.