Home / 343,860,077.70-515,790,116.55-312,115,335.30

Finding the Fourth Proportional to 343,860,077.70, 515,790,116.55 and 312,115,335.30

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Solution

The fourth proportional to 343,860,077.70, 515,790,116.55 and 312,115,335.30 is: 468,173,002.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,860,077.70 : 515,790,116.55 = 312,115,335.30 : x
  2. Step 2: Convert to fraction form
    343,860,077.70/515,790,116.55 = 312,115,335.30/x
  3. Step 3: Cross multiply
    343,860,077.70x = 515,790,116.55 × 312,115,335.30
  4. Step 4: Simplify right side
    343,860,077.70x = 160,986,005,171,429,344
  5. Step 5: Solve for x
    x = 160,986,005,171,429,344/343,860,077.70
  6. Step 6: Final answer
    x = 468,173,002.95

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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.