Home / 12,999,634.18-17,939,484.06-7,198,415.80

Finding the Fourth Proportional to 12,999,634.18, 17,939,484.06 and 7,198,415.80

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Solution

The fourth proportional to 12,999,634.18, 17,939,484.06 and 7,198,415.80 is: 9,933,807.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,999,634.18 : 17,939,484.06 = 7,198,415.80 : x
  2. Step 2: Convert to fraction form
    12,999,634.18/17,939,484.06 = 7,198,415.80/x
  3. Step 3: Cross multiply
    12,999,634.18x = 17,939,484.06 × 7,198,415.80
  4. Step 4: Simplify right side
    12,999,634.18x = 129,135,865,501,352.14
  5. Step 5: Solve for x
    x = 129,135,865,501,352.14/12,999,634.18
  6. Step 6: Final answer
    x = 9,933,807.65

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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.