Home / 403,380,472.20-605,070,708.30-394,877,416.20

Finding the Fourth Proportional to 403,380,472.20, 605,070,708.30 and 394,877,416.20

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Solution

The fourth proportional to 403,380,472.20, 605,070,708.30 and 394,877,416.20 is: 592,316,124.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,380,472.20 : 605,070,708.30 = 394,877,416.20 : x
  2. Step 2: Convert to fraction form
    403,380,472.20/605,070,708.30 = 394,877,416.20/x
  3. Step 3: Cross multiply
    403,380,472.20x = 605,070,708.30 × 394,877,416.20
  4. Step 4: Simplify right side
    403,380,472.20x = 238,928,757,911,807,872
  5. Step 5: Solve for x
    x = 238,928,757,911,807,872/403,380,472.20
  6. Step 6: Final answer
    x = 592,316,124.30

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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.