Home / 18,386,187.42-25,371,061-11,320,658.67

Finding the Fourth Proportional to 18,386,187.42, 25,371,061 and 11,320,658.67

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Solution

The fourth proportional to 18,386,187.42, 25,371,061 and 11,320,658.67 is: 15,621,352.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,386,187.42 : 25,371,061 = 11,320,658.67 : x
  2. Step 2: Convert to fraction form
    18,386,187.42/25,371,061 = 11,320,658.67/x
  3. Step 3: Cross multiply
    18,386,187.42x = 25,371,061 × 11,320,658.67
  4. Step 4: Simplify right side
    18,386,187.42x = 287,217,121,676,748.88
  5. Step 5: Solve for x
    x = 287,217,121,676,748.88/18,386,187.42
  6. Step 6: Final answer
    x = 15,621,352.87

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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.