Home / 12,607,056,765.65-18,910,585,149.78-4,212,962,396.88

Finding the Fourth Proportional to 12,607,056,765.65, 18,910,585,149.78 and 4,212,962,396.88

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Solution

The fourth proportional to 12,607,056,765.65, 18,910,585,149.78 and 4,212,962,396.88 is: 6,319,443,595.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,607,056,765.65 : 18,910,585,149.78 = 4,212,962,396.88 : x
  2. Step 2: Convert to fraction form
    12,607,056,765.65/18,910,585,149.78 = 4,212,962,396.88/x
  3. Step 3: Cross multiply
    12,607,056,765.65x = 18,910,585,149.78 × 4,212,962,396.88
  4. Step 4: Simplify right side
    12,607,056,765.65x = 79,669,584,138,958,946,304
  5. Step 5: Solve for x
    x = 79,669,584,138,958,946,304/12,607,056,765.65
  6. Step 6: Final answer
    x = 6,319,443,595.75

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1.5x scale

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.