Home / 12,640,406.66-17,443,760.90-6,839,188.40

Finding the Fourth Proportional to 12,640,406.66, 17,443,760.90 and 6,839,188.40

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Solution

The fourth proportional to 12,640,406.66, 17,443,760.90 and 6,839,188.40 is: 9,438,079.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,640,406.66 : 17,443,760.90 = 6,839,188.40 : x
  2. Step 2: Convert to fraction form
    12,640,406.66/17,443,760.90 = 6,839,188.40/x
  3. Step 3: Cross multiply
    12,640,406.66x = 17,443,760.90 × 6,839,188.40
  4. Step 4: Simplify right side
    12,640,406.66x = 119,301,167,199,653.56
  5. Step 5: Solve for x
    x = 119,301,167,199,653.56/12,640,406.66
  6. Step 6: Final answer
    x = 9,438,079.83

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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.