Home / 20,334,744.20-28,051,570.52-12,984,849.56

Finding the Fourth Proportional to 20,334,744.20, 28,051,570.52 and 12,984,849.56

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Solution

The fourth proportional to 20,334,744.20, 28,051,570.52 and 12,984,849.56 is: 17,912,466.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,334,744.20 : 28,051,570.52 = 12,984,849.56 : x
  2. Step 2: Convert to fraction form
    20,334,744.20/28,051,570.52 = 12,984,849.56/x
  3. Step 3: Cross multiply
    20,334,744.20x = 28,051,570.52 × 12,984,849.56
  4. Step 4: Simplify right side
    20,334,744.20x = 364,245,423,123,931
  5. Step 5: Solve for x
    x = 364,245,423,123,931/20,334,744.20
  6. Step 6: Final answer
    x = 17,912,466.44

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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.