Home / 28,690,116.82-43,034,960.70-8,219,853.72

Finding the Fourth Proportional to 28,690,116.82, 43,034,960.70 and 8,219,853.72

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Solution

The fourth proportional to 28,690,116.82, 43,034,960.70 and 8,219,853.72 is: 12,329,719.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,690,116.82 : 43,034,960.70 = 8,219,853.72 : x
  2. Step 2: Convert to fraction form
    28,690,116.82/43,034,960.70 = 8,219,853.72/x
  3. Step 3: Cross multiply
    28,690,116.82x = 43,034,960.70 × 8,219,853.72
  4. Step 4: Simplify right side
    28,690,116.82x = 353,741,081,799,948.81
  5. Step 5: Solve for x
    x = 353,741,081,799,948.81/28,690,116.82
  6. Step 6: Final answer
    x = 12,329,719.12

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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.