Home / 486,464,387.21-730,860,682.98-311,929,374.61

Finding the Fourth Proportional to 486,464,387.21, 730,860,682.98 and 311,929,374.61

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Solution

The fourth proportional to 486,464,387.21, 730,860,682.98 and 311,929,374.61 is: 468,640,504.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,464,387.21 : 730,860,682.98 = 311,929,374.61 : x
  2. Step 2: Convert to fraction form
    486,464,387.21/730,860,682.98 = 311,929,374.61/x
  3. Step 3: Cross multiply
    486,464,387.21x = 730,860,682.98 × 311,929,374.61
  4. Step 4: Simplify right side
    486,464,387.21x = 227,976,915,768,988,896
  5. Step 5: Solve for x
    x = 227,976,915,768,988,896/486,464,387.21
  6. Step 6: Final answer
    x = 468,640,504.35

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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.