Home / 13,286,934.60-18,335,969.64-7,175,362.56

Finding the Fourth Proportional to 13,286,934.60, 18,335,969.64 and 7,175,362.56

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Solution

The fourth proportional to 13,286,934.60, 18,335,969.64 and 7,175,362.56 is: 9,902,000.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286,934.60 : 18,335,969.64 = 7,175,362.56 : x
  2. Step 2: Convert to fraction form
    13,286,934.60/18,335,969.64 = 7,175,362.56/x
  3. Step 3: Cross multiply
    13,286,934.60x = 18,335,969.64 × 7,175,362.56
  4. Step 4: Simplify right side
    13,286,934.60x = 131,567,230,056,152.67
  5. Step 5: Solve for x
    x = 131,567,230,056,152.67/13,286,934.60
  6. Step 6: Final answer
    x = 9,902,000.27

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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.