Home / 852,436,518.40-1,278,136,986.88-334,246,128.64

Finding the Fourth Proportional to 852,436,518.40, 1,278,136,986.88 and 334,246,128.64

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Solution

The fourth proportional to 852,436,518.40, 1,278,136,986.88 and 334,246,128.64 is: 501,166,163.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,436,518.40 : 1,278,136,986.88 = 334,246,128.64 : x
  2. Step 2: Convert to fraction form
    852,436,518.40/1,278,136,986.88 = 334,246,128.64/x
  3. Step 3: Cross multiply
    852,436,518.40x = 1,278,136,986.88 × 334,246,128.64
  4. Step 4: Simplify right side
    852,436,518.40x = 427,212,339,736,234,496
  5. Step 5: Solve for x
    x = 427,212,339,736,234,496/852,436,518.40
  6. Step 6: Final answer
    x = 501,166,163.71

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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.