Home / 1,020,997,965.62-1,531,175,697.39-330,745,073.78

Finding the Fourth Proportional to 1,020,997,965.62, 1,531,175,697.39 and 330,745,073.78

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Solution

The fourth proportional to 1,020,997,965.62, 1,531,175,697.39 and 330,745,073.78 is: 496,013,543.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,997,965.62 : 1,531,175,697.39 = 330,745,073.78 : x
  2. Step 2: Convert to fraction form
    1,020,997,965.62/1,531,175,697.39 = 330,745,073.78/x
  3. Step 3: Cross multiply
    1,020,997,965.62x = 1,531,175,697.39 × 330,745,073.78
  4. Step 4: Simplify right side
    1,020,997,965.62x = 506,428,819,003,398,464
  5. Step 5: Solve for x
    x = 506,428,819,003,398,464/1,020,997,965.62
  6. Step 6: Final answer
    x = 496,013,543.67

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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.