Home / 13,309,878.58-18,367,644.54-7,198,307.08

Finding the Fourth Proportional to 13,309,878.58, 18,367,644.54 and 7,198,307.08

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Solution

The fourth proportional to 13,309,878.58, 18,367,644.54 and 7,198,307.08 is: 9,933,670.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309,878.58 : 18,367,644.54 = 7,198,307.08 : x
  2. Step 2: Convert to fraction form
    13,309,878.58/18,367,644.54 = 7,198,307.08/x
  3. Step 3: Cross multiply
    13,309,878.58x = 18,367,644.54 × 7,198,307.08
  4. Step 4: Simplify right side
    13,309,878.58x = 132,215,945,735,205.34
  5. Step 5: Solve for x
    x = 132,215,945,735,205.34/13,309,878.58
  6. Step 6: Final answer
    x = 9,933,670.31

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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.