Home / 668,827,997.80-1,003,241,996.70-436,375,704.40

Finding the Fourth Proportional to 668,827,997.80, 1,003,241,996.70 and 436,375,704.40

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Solution

The fourth proportional to 668,827,997.80, 1,003,241,996.70 and 436,375,704.40 is: 654,563,556.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,827,997.80 : 1,003,241,996.70 = 436,375,704.40 : x
  2. Step 2: Convert to fraction form
    668,827,997.80/1,003,241,996.70 = 436,375,704.40/x
  3. Step 3: Cross multiply
    668,827,997.80x = 1,003,241,996.70 × 436,375,704.40
  4. Step 4: Simplify right side
    668,827,997.80x = 437,790,432,993,624,960
  5. Step 5: Solve for x
    x = 437,790,432,993,624,960/668,827,997.80
  6. Step 6: Final answer
    x = 654,563,556.60

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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.