Home / 13,290,241.88-18,340,541.15-7,178,670.38

Finding the Fourth Proportional to 13,290,241.88, 18,340,541.15 and 7,178,670.38

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Solution

The fourth proportional to 13,290,241.88, 18,340,541.15 and 7,178,670.38 is: 9,906,569.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290,241.88 : 18,340,541.15 = 7,178,670.38 : x
  2. Step 2: Convert to fraction form
    13,290,241.88/18,340,541.15 = 7,178,670.38/x
  3. Step 3: Cross multiply
    13,290,241.88x = 18,340,541.15 × 7,178,670.38
  4. Step 4: Simplify right side
    13,290,241.88x = 131,660,699,379,080.08
  5. Step 5: Solve for x
    x = 131,660,699,379,080.08/13,290,241.88
  6. Step 6: Final answer
    x = 9,906,569.09

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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.