Home / 13,772,214.42-18,975,517.29-9,118,103.46

Finding the Fourth Proportional to 13,772,214.42, 18,975,517.29 and 9,118,103.46

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Solution

The fourth proportional to 13,772,214.42, 18,975,517.29 and 9,118,103.46 is: 12,563,029.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,772,214.42 : 18,975,517.29 = 9,118,103.46 : x
  2. Step 2: Convert to fraction form
    13,772,214.42/18,975,517.29 = 9,118,103.46/x
  3. Step 3: Cross multiply
    13,772,214.42x = 18,975,517.29 × 9,118,103.46
  4. Step 4: Simplify right side
    13,772,214.42x = 173,020,729,857,238.84
  5. Step 5: Solve for x
    x = 173,020,729,857,238.84/13,772,214.42
  6. Step 6: Final answer
    x = 12,563,029.05

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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.