Home / 7,439,776.42-11,137,985.65-5,529,147.61

Finding the Fourth Proportional to 7,439,776.42, 11,137,985.65 and 5,529,147.61

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Solution

The fourth proportional to 7,439,776.42, 11,137,985.65 and 5,529,147.61 is: 8,277,609.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,439,776.42 : 11,137,985.65 = 5,529,147.61 : x
  2. Step 2: Convert to fraction form
    7,439,776.42/11,137,985.65 = 5,529,147.61/x
  3. Step 3: Cross multiply
    7,439,776.42x = 11,137,985.65 × 5,529,147.61
  4. Step 4: Simplify right side
    7,439,776.42x = 61,583,566,736,911.80
  5. Step 5: Solve for x
    x = 61,583,566,736,911.80/7,439,776.42
  6. Step 6: Final answer
    x = 8,277,609.87

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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.