Home / 717,474,239.87-1,076,211,372.35-172,215,773.87

Finding the Fourth Proportional to 717,474,239.87, 1,076,211,372.35 and 172,215,773.87

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Solution

The fourth proportional to 717,474,239.87, 1,076,211,372.35 and 172,215,773.87 is: 258,323,663.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,474,239.87 : 1,076,211,372.35 = 172,215,773.87 : x
  2. Step 2: Convert to fraction form
    717,474,239.87/1,076,211,372.35 = 172,215,773.87/x
  3. Step 3: Cross multiply
    717,474,239.87x = 1,076,211,372.35 × 172,215,773.87
  4. Step 4: Simplify right side
    717,474,239.87x = 185,340,574,331,999,456
  5. Step 5: Solve for x
    x = 185,340,574,331,999,456/717,474,239.87
  6. Step 6: Final answer
    x = 258,323,663.81

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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.