Home / 15,367,390.34-21,207,006.23-8,491,872.40

Finding the Fourth Proportional to 15,367,390.34, 21,207,006.23 and 8,491,872.40

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Solution

The fourth proportional to 15,367,390.34, 21,207,006.23 and 8,491,872.40 is: 11,718,788.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,367,390.34 : 21,207,006.23 = 8,491,872.40 : x
  2. Step 2: Convert to fraction form
    15,367,390.34/21,207,006.23 = 8,491,872.40/x
  3. Step 3: Cross multiply
    15,367,390.34x = 21,207,006.23 × 8,491,872.40
  4. Step 4: Simplify right side
    15,367,390.34x = 180,087,190,795,688.22
  5. Step 5: Solve for x
    x = 180,087,190,795,688.22/15,367,390.34
  6. Step 6: Final answer
    x = 11,718,788.09

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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.