Home / 8,393,932.80-12,618,892.80-7,162,214.40

Finding the Fourth Proportional to 8,393,932.80, 12,618,892.80 and 7,162,214.40

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Solution

The fourth proportional to 8,393,932.80, 12,618,892.80 and 7,162,214.40 is: 10,767,207.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,393,932.80 : 12,618,892.80 = 7,162,214.40 : x
  2. Step 2: Convert to fraction form
    8,393,932.80/12,618,892.80 = 7,162,214.40/x
  3. Step 3: Cross multiply
    8,393,932.80x = 12,618,892.80 × 7,162,214.40
  4. Step 4: Simplify right side
    8,393,932.80x = 90,379,215,724,216.33
  5. Step 5: Solve for x
    x = 90,379,215,724,216.33/8,393,932.80
  6. Step 6: Final answer
    x = 10,767,207.44

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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.