Home / 13,538,340.42-18,682,801.20-7,343,371.32

Finding the Fourth Proportional to 13,538,340.42, 18,682,801.20 and 7,343,371.32

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Solution

The fourth proportional to 13,538,340.42, 18,682,801.20 and 7,343,371.32 is: 10,133,793.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,538,340.42 : 18,682,801.20 = 7,343,371.32 : x
  2. Step 2: Convert to fraction form
    13,538,340.42/18,682,801.20 = 7,343,371.32/x
  3. Step 3: Cross multiply
    13,538,340.42x = 18,682,801.20 × 7,343,371.32
  4. Step 4: Simplify right side
    13,538,340.42x = 137,194,746,509,341.58
  5. Step 5: Solve for x
    x = 137,194,746,509,341.58/13,538,340.42
  6. Step 6: Final answer
    x = 10,133,793.53

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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.