Home / 12,999,532.05-17,939,350.14-7,198,312.25

Finding the Fourth Proportional to 12,999,532.05, 17,939,350.14 and 7,198,312.25

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Solution

The fourth proportional to 12,999,532.05, 17,939,350.14 and 7,198,312.25 is: 9,933,668.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,999,532.05 : 17,939,350.14 = 7,198,312.25 : x
  2. Step 2: Convert to fraction form
    12,999,532.05/17,939,350.14 = 7,198,312.25/x
  3. Step 3: Cross multiply
    12,999,532.05x = 17,939,350.14 × 7,198,312.25
  4. Step 4: Simplify right side
    12,999,532.05x = 129,133,043,780,104.47
  5. Step 5: Solve for x
    x = 129,133,043,780,104.47/12,999,532.05
  6. Step 6: Final answer
    x = 9,933,668.63

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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.