Home / 15,051,712.22-20,771,932.73-8,436,421.85

Finding the Fourth Proportional to 15,051,712.22, 20,771,932.73 and 8,436,421.85

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Solution

The fourth proportional to 15,051,712.22, 20,771,932.73 and 8,436,421.85 is: 11,642,581.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,051,712.22 : 20,771,932.73 = 8,436,421.85 : x
  2. Step 2: Convert to fraction form
    15,051,712.22/20,771,932.73 = 8,436,421.85/x
  3. Step 3: Cross multiply
    15,051,712.22x = 20,771,932.73 × 8,436,421.85
  4. Step 4: Simplify right side
    15,051,712.22x = 175,240,787,004,060.41
  5. Step 5: Solve for x
    x = 175,240,787,004,060.41/15,051,712.22
  6. Step 6: Final answer
    x = 11,642,581.55

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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.