Home / 7,990,448.78-11,025,996.45-5,898,404.21

Finding the Fourth Proportional to 7,990,448.78, 11,025,996.45 and 5,898,404.21

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Solution

The fourth proportional to 7,990,448.78, 11,025,996.45 and 5,898,404.21 is: 8,139,190.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,990,448.78 : 11,025,996.45 = 5,898,404.21 : x
  2. Step 2: Convert to fraction form
    7,990,448.78/11,025,996.45 = 5,898,404.21/x
  3. Step 3: Cross multiply
    7,990,448.78x = 11,025,996.45 × 5,898,404.21
  4. Step 4: Simplify right side
    7,990,448.78x = 65,035,783,880,125.05
  5. Step 5: Solve for x
    x = 65,035,783,880,125.05/7,990,448.78
  6. Step 6: Final answer
    x = 8,139,190.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.