Home / 667,307,731.20-1,000,961,596.80-621,958,099.20

Finding the Fourth Proportional to 667,307,731.20, 1,000,961,596.80 and 621,958,099.20

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Solution

The fourth proportional to 667,307,731.20, 1,000,961,596.80 and 621,958,099.20 is: 932,937,148.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,307,731.20 : 1,000,961,596.80 = 621,958,099.20 : x
  2. Step 2: Convert to fraction form
    667,307,731.20/1,000,961,596.80 = 621,958,099.20/x
  3. Step 3: Cross multiply
    667,307,731.20x = 1,000,961,596.80 × 621,958,099.20
  4. Step 4: Simplify right side
    667,307,731.20x = 622,556,172,117,924,864
  5. Step 5: Solve for x
    x = 622,556,172,117,924,864/667,307,731.20
  6. Step 6: Final answer
    x = 932,937,148.80

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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.