Home / 13,511,827.36-18,647,655.36-7,711,476.91

Finding the Fourth Proportional to 13,511,827.36, 18,647,655.36 and 7,711,476.91

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Solution

The fourth proportional to 13,511,827.36, 18,647,655.36 and 7,711,476.91 is: 10,642,599.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511,827.36 : 18,647,655.36 = 7,711,476.91 : x
  2. Step 2: Convert to fraction form
    13,511,827.36/18,647,655.36 = 7,711,476.91/x
  3. Step 3: Cross multiply
    13,511,827.36x = 18,647,655.36 × 7,711,476.91
  4. Step 4: Simplify right side
    13,511,827.36x = 143,800,963,734,277.75
  5. Step 5: Solve for x
    x = 143,800,963,734,277.75/13,511,827.36
  6. Step 6: Final answer
    x = 10,642,599.25

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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.