Home / 8,458,521.05-12,690,514.03-3,912,551.90

Finding the Fourth Proportional to 8,458,521.05, 12,690,514.03 and 3,912,551.90

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Solution

The fourth proportional to 8,458,521.05, 12,690,514.03 and 3,912,551.90 is: 5,870,091.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,458,521.05 : 12,690,514.03 = 3,912,551.90 : x
  2. Step 2: Convert to fraction form
    8,458,521.05/12,690,514.03 = 3,912,551.90/x
  3. Step 3: Cross multiply
    8,458,521.05x = 12,690,514.03 × 3,912,551.90
  4. Step 4: Simplify right side
    8,458,521.05x = 49,652,294,780,053.16
  5. Step 5: Solve for x
    x = 49,652,294,780,053.16/8,458,521.05
  6. Step 6: Final answer
    x = 5,870,091.77

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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.