Home / 668,857,496.80-1,003,286,245.20-436,405,203.40

Finding the Fourth Proportional to 668,857,496.80, 1,003,286,245.20 and 436,405,203.40

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Solution

The fourth proportional to 668,857,496.80, 1,003,286,245.20 and 436,405,203.40 is: 654,607,805.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,857,496.80 : 1,003,286,245.20 = 436,405,203.40 : x
  2. Step 2: Convert to fraction form
    668,857,496.80/1,003,286,245.20 = 436,405,203.40/x
  3. Step 3: Cross multiply
    668,857,496.80x = 1,003,286,245.20 × 436,405,203.40
  4. Step 4: Simplify right side
    668,857,496.80x = 437,839,337,904,928,256
  5. Step 5: Solve for x
    x = 437,839,337,904,928,256/668,857,496.80
  6. Step 6: Final answer
    x = 654,607,805.10

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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.