Home / 13,286,883.85-18,335,899.61-7,175,311.81

Finding the Fourth Proportional to 13,286,883.85, 18,335,899.61 and 7,175,311.81

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Solution

The fourth proportional to 13,286,883.85, 18,335,899.61 and 7,175,311.81 is: 9,901,930.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286,883.85 : 18,335,899.61 = 7,175,311.81 : x
  2. Step 2: Convert to fraction form
    13,286,883.85/18,335,899.61 = 7,175,311.81/x
  3. Step 3: Cross multiply
    13,286,883.85x = 18,335,899.61 × 7,175,311.81
  4. Step 4: Simplify right side
    13,286,883.85x = 131,565,796,982,730.83
  5. Step 5: Solve for x
    x = 131,565,796,982,730.83/13,286,883.85
  6. Step 6: Final answer
    x = 9,901,930.24

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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.