Home / 1,020,997,963.62-1,531,175,694.39-330,745,071.78

Finding the Fourth Proportional to 1,020,997,963.62, 1,531,175,694.39 and 330,745,071.78

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Solution

The fourth proportional to 1,020,997,963.62, 1,531,175,694.39 and 330,745,071.78 is: 496,013,540.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,997,963.62 : 1,531,175,694.39 = 330,745,071.78 : x
  2. Step 2: Convert to fraction form
    1,020,997,963.62/1,531,175,694.39 = 330,745,071.78/x
  3. Step 3: Cross multiply
    1,020,997,963.62x = 1,531,175,694.39 × 330,745,071.78
  4. Step 4: Simplify right side
    1,020,997,963.62x = 506,428,814,948,811,904
  5. Step 5: Solve for x
    x = 506,428,814,948,811,904/1,020,997,963.62
  6. Step 6: Final answer
    x = 496,013,540.67

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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.