Home / 12,999,716.10-17,939,389.68-7,198,373.32

Finding the Fourth Proportional to 12,999,716.10, 17,939,389.68 and 7,198,373.32

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Solution

The fourth proportional to 12,999,716.10, 17,939,389.68 and 7,198,373.32 is: 9,933,634.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,999,716.10 : 17,939,389.68 = 7,198,373.32 : x
  2. Step 2: Convert to fraction form
    12,999,716.10/17,939,389.68 = 7,198,373.32/x
  3. Step 3: Cross multiply
    12,999,716.10x = 17,939,389.68 × 7,198,373.32
  4. Step 4: Simplify right side
    12,999,716.10x = 129,134,424,049,595.34
  5. Step 5: Solve for x
    x = 129,134,424,049,595.34/12,999,716.10
  6. Step 6: Final answer
    x = 9,933,634.17

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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.