Home / 10,102,120.80-13,940,903.08-5,518,474.98

Finding the Fourth Proportional to 10,102,120.80, 13,940,903.08 and 5,518,474.98

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Solution

The fourth proportional to 10,102,120.80, 13,940,903.08 and 5,518,474.98 is: 7,615,482.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,102,120.80 : 13,940,903.08 = 5,518,474.98 : x
  2. Step 2: Convert to fraction form
    10,102,120.80/13,940,903.08 = 5,518,474.98/x
  3. Step 3: Cross multiply
    10,102,120.80x = 13,940,903.08 × 5,518,474.98
  4. Step 4: Simplify right side
    10,102,120.80x = 76,932,524,845,584.94
  5. Step 5: Solve for x
    x = 76,932,524,845,584.94/10,102,120.80
  6. Step 6: Final answer
    x = 7,615,482.57

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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.