Home / 12,415,399.11-17,134,742.29-7,520,477.58

Finding the Fourth Proportional to 12,415,399.11, 17,134,742.29 and 7,520,477.58

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Solution

The fourth proportional to 12,415,399.11, 17,134,742.29 and 7,520,477.58 is: 10,379,162.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,415,399.11 : 17,134,742.29 = 7,520,477.58 : x
  2. Step 2: Convert to fraction form
    12,415,399.11/17,134,742.29 = 7,520,477.58/x
  3. Step 3: Cross multiply
    12,415,399.11x = 17,134,742.29 × 7,520,477.58
  4. Step 4: Simplify right side
    12,415,399.11x = 128,861,445,231,022.86
  5. Step 5: Solve for x
    x = 128,861,445,231,022.86/12,415,399.11
  6. Step 6: Final answer
    x = 10,379,162.53

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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.