Home / 12,640,656.22-17,443,981.39-6,839,310.67

Finding the Fourth Proportional to 12,640,656.22, 17,443,981.39 and 6,839,310.67

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Solution

The fourth proportional to 12,640,656.22, 17,443,981.39 and 6,839,310.67 is: 9,438,181.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,640,656.22 : 17,443,981.39 = 6,839,310.67 : x
  2. Step 2: Convert to fraction form
    12,640,656.22/17,443,981.39 = 6,839,310.67/x
  3. Step 3: Cross multiply
    12,640,656.22x = 17,443,981.39 × 6,839,310.67
  4. Step 4: Simplify right side
    12,640,656.22x = 119,304,807,943,590.25
  5. Step 5: Solve for x
    x = 119,304,807,943,590.25/12,640,656.22
  6. Step 6: Final answer
    x = 9,438,181.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.