Home / 20,346,914.70-30,520,372.05-18,788,021.10

Finding the Fourth Proportional to 20,346,914.70, 30,520,372.05 and 18,788,021.10

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Solution

The fourth proportional to 20,346,914.70, 30,520,372.05 and 18,788,021.10 is: 28,182,031.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,346,914.70 : 30,520,372.05 = 18,788,021.10 : x
  2. Step 2: Convert to fraction form
    20,346,914.70/30,520,372.05 = 18,788,021.10/x
  3. Step 3: Cross multiply
    20,346,914.70x = 30,520,372.05 × 18,788,021.10
  4. Step 4: Simplify right side
    20,346,914.70x = 573,417,394,055,250.38
  5. Step 5: Solve for x
    x = 573,417,394,055,250.38/20,346,914.70
  6. Step 6: Final answer
    x = 28,182,031.65

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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.