Home / 13,558,578.04-18,711,203.12-7,977,214.12

Finding the Fourth Proportional to 13,558,578.04, 18,711,203.12 and 7,977,214.12

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Solution

The fourth proportional to 13,558,578.04, 18,711,203.12 and 7,977,214.12 is: 11,008,770.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558,578.04 : 18,711,203.12 = 7,977,214.12 : x
  2. Step 2: Convert to fraction form
    13,558,578.04/18,711,203.12 = 7,977,214.12/x
  3. Step 3: Cross multiply
    13,558,578.04x = 18,711,203.12 × 7,977,214.12
  4. Step 4: Simplify right side
    13,558,578.04x = 149,263,273,731,052.06
  5. Step 5: Solve for x
    x = 149,263,273,731,052.06/13,558,578.04
  6. Step 6: Final answer
    x = 11,008,770.48

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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.