Home / 12,998,192.59-17,938,515.69-7,197,514.03

Finding the Fourth Proportional to 12,998,192.59, 17,938,515.69 and 7,197,514.03

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Solution

The fourth proportional to 12,998,192.59, 17,938,515.69 and 7,197,514.03 is: 9,933,128.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,998,192.59 : 17,938,515.69 = 7,197,514.03 : x
  2. Step 2: Convert to fraction form
    12,998,192.59/17,938,515.69 = 7,197,514.03/x
  3. Step 3: Cross multiply
    12,998,192.59x = 17,938,515.69 × 7,197,514.03
  4. Step 4: Simplify right side
    12,998,192.59x = 129,112,718,230,469.98
  5. Step 5: Solve for x
    x = 129,112,718,230,469.98/12,998,192.59
  6. Step 6: Final answer
    x = 9,933,128.58

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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.