Home / 20,413,089.40-30,619,634.10-18,334,564.60

Finding the Fourth Proportional to 20,413,089.40, 30,619,634.10 and 18,334,564.60

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Solution

The fourth proportional to 20,413,089.40, 30,619,634.10 and 18,334,564.60 is: 27,501,846.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,413,089.40 : 30,619,634.10 = 18,334,564.60 : x
  2. Step 2: Convert to fraction form
    20,413,089.40/30,619,634.10 = 18,334,564.60/x
  3. Step 3: Cross multiply
    20,413,089.40x = 30,619,634.10 × 18,334,564.60
  4. Step 4: Simplify right side
    20,413,089.40x = 561,397,659,434,812.94
  5. Step 5: Solve for x
    x = 561,397,659,434,812.94/20,413,089.40
  6. Step 6: Final answer
    x = 27,501,846.90

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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.