Home / 394,192,641.86-543,989,370.48-217,992,492.56

Finding the Fourth Proportional to 394,192,641.86, 543,989,370.48 and 217,992,492.56

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Solution

The fourth proportional to 394,192,641.86, 543,989,370.48 and 217,992,492.56 is: 300,831,588.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,192,641.86 : 543,989,370.48 = 217,992,492.56 : x
  2. Step 2: Convert to fraction form
    394,192,641.86/543,989,370.48 = 217,992,492.56/x
  3. Step 3: Cross multiply
    394,192,641.86x = 543,989,370.48 × 217,992,492.56
  4. Step 4: Simplify right side
    394,192,641.86x = 118,585,598,797,080,496
  5. Step 5: Solve for x
    x = 118,585,598,797,080,496/394,192,641.86
  6. Step 6: Final answer
    x = 300,831,588.93

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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.