Home / 12,999,701.41-17,939,367.12-7,198,358.59

Finding the Fourth Proportional to 12,999,701.41, 17,939,367.12 and 7,198,358.59

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Solution

The fourth proportional to 12,999,701.41, 17,939,367.12 and 7,198,358.59 is: 9,933,612.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,999,701.41 : 17,939,367.12 = 7,198,358.59 : x
  2. Step 2: Convert to fraction form
    12,999,701.41/17,939,367.12 = 7,198,358.59/x
  3. Step 3: Cross multiply
    12,999,701.41x = 17,939,367.12 × 7,198,358.59
  4. Step 4: Simplify right side
    12,999,701.41x = 129,133,997,456,833.61
  5. Step 5: Solve for x
    x = 129,133,997,456,833.61/12,999,701.41
  6. Step 6: Final answer
    x = 9,933,612.58

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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.