Home / 13,420,525.14-18,520,849.08-7,619,846.58

Finding the Fourth Proportional to 13,420,525.14, 18,520,849.08 and 7,619,846.58

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Solution

The fourth proportional to 13,420,525.14, 18,520,849.08 and 7,619,846.58 is: 10,515,686.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,420,525.14 : 18,520,849.08 = 7,619,846.58 : x
  2. Step 2: Convert to fraction form
    13,420,525.14/18,520,849.08 = 7,619,846.58/x
  3. Step 3: Cross multiply
    13,420,525.14x = 18,520,849.08 × 7,619,846.58
  4. Step 4: Simplify right side
    13,420,525.14x = 141,126,028,520,934.12
  5. Step 5: Solve for x
    x = 141,126,028,520,934.12/13,420,525.14
  6. Step 6: Final answer
    x = 10,515,686.01

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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.