Home / 407,986,715.35-563,023,573.82-231,784,379.41

Finding the Fourth Proportional to 407,986,715.35, 563,023,573.82 and 231,784,379.41

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Solution

The fourth proportional to 407,986,715.35, 563,023,573.82 and 231,784,379.41 is: 319,863,526.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,986,715.35 : 563,023,573.82 = 231,784,379.41 : x
  2. Step 2: Convert to fraction form
    407,986,715.35/563,023,573.82 = 231,784,379.41/x
  3. Step 3: Cross multiply
    407,986,715.35x = 563,023,573.82 × 231,784,379.41
  4. Step 4: Simplify right side
    407,986,715.35x = 130,500,069,650,240,928
  5. Step 5: Solve for x
    x = 130,500,069,650,240,928/407,986,715.35
  6. Step 6: Final answer
    x = 319,863,526.78

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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.