Home / 311,446,140.40-467,195,782.65-81,414,856

Finding the Fourth Proportional to 311,446,140.40, 467,195,782.65 and 81,414,856

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Solution

The fourth proportional to 311,446,140.40, 467,195,782.65 and 81,414,856 is: 122,129,230.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,446,140.40 : 467,195,782.65 = 81,414,856 : x
  2. Step 2: Convert to fraction form
    311,446,140.40/467,195,782.65 = 81,414,856/x
  3. Step 3: Cross multiply
    311,446,140.40x = 467,195,782.65 × 81,414,856
  4. Step 4: Simplify right side
    311,446,140.40x = 38,036,677,368,257,048
  5. Step 5: Solve for x
    x = 38,036,677,368,257,048/311,446,140.40
  6. Step 6: Final answer
    x = 122,129,230.18

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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.