Home / 621,636,342.52-857,835,620.86-343,171,872.76

Finding the Fourth Proportional to 621,636,342.52, 857,835,620.86 and 343,171,872.76

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Solution

The fourth proportional to 621,636,342.52, 857,835,620.86 and 343,171,872.76 is: 473,564,745.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,636,342.52 : 857,835,620.86 = 343,171,872.76 : x
  2. Step 2: Convert to fraction form
    621,636,342.52/857,835,620.86 = 343,171,872.76/x
  3. Step 3: Cross multiply
    621,636,342.52x = 857,835,620.86 × 343,171,872.76
  4. Step 4: Simplify right side
    621,636,342.52x = 294,385,056,530,763,520
  5. Step 5: Solve for x
    x = 294,385,056,530,763,520/621,636,342.52
  6. Step 6: Final answer
    x = 473,564,745.81

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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.