Home / 783,621,322.62-1,175,431,808.34-285,669,168.75

Finding the Fourth Proportional to 783,621,322.62, 1,175,431,808.34 and 285,669,168.75

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Solution

The fourth proportional to 783,621,322.62, 1,175,431,808.34 and 285,669,168.75 is: 428,503,689.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,621,322.62 : 1,175,431,808.34 = 285,669,168.75 : x
  2. Step 2: Convert to fraction form
    783,621,322.62/1,175,431,808.34 = 285,669,168.75/x
  3. Step 3: Cross multiply
    783,621,322.62x = 1,175,431,808.34 × 285,669,168.75
  4. Step 4: Simplify right side
    783,621,322.62x = 335,784,627,610,797,120
  5. Step 5: Solve for x
    x = 335,784,627,610,797,120/783,621,322.62
  6. Step 6: Final answer
    x = 428,503,689.11

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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.