Home / 668,757,738.60-1,003,136,607.90-280,858,952.70

Finding the Fourth Proportional to 668,757,738.60, 1,003,136,607.90 and 280,858,952.70

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Solution

The fourth proportional to 668,757,738.60, 1,003,136,607.90 and 280,858,952.70 is: 421,288,429.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,757,738.60 : 1,003,136,607.90 = 280,858,952.70 : x
  2. Step 2: Convert to fraction form
    668,757,738.60/1,003,136,607.90 = 280,858,952.70/x
  3. Step 3: Cross multiply
    668,757,738.60x = 1,003,136,607.90 × 280,858,952.70
  4. Step 4: Simplify right side
    668,757,738.60x = 281,739,897,109,824,512
  5. Step 5: Solve for x
    x = 281,739,897,109,824,512/668,757,738.60
  6. Step 6: Final answer
    x = 421,288,429.05

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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.