Home / 1,211,115,349.28-1,671,339,855.04-654,198,401.76

Finding the Fourth Proportional to 1,211,115,349.28, 1,671,339,855.04 and 654,198,401.76

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Solution

The fourth proportional to 1,211,115,349.28, 1,671,339,855.04 and 654,198,401.76 is: 902,794,157.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,115,349.28 : 1,671,339,855.04 = 654,198,401.76 : x
  2. Step 2: Convert to fraction form
    1,211,115,349.28/1,671,339,855.04 = 654,198,401.76/x
  3. Step 3: Cross multiply
    1,211,115,349.28x = 1,671,339,855.04 × 654,198,401.76
  4. Step 4: Simplify right side
    1,211,115,349.28x = 1,093,387,861,964,958,080
  5. Step 5: Solve for x
    x = 1,093,387,861,964,958,080/1,211,115,349.28
  6. Step 6: Final answer
    x = 902,794,157.98

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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.