Home / 13,120,529.10-19,680,793.65-8,349,369.90

Finding the Fourth Proportional to 13,120,529.10, 19,680,793.65 and 8,349,369.90

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Solution

The fourth proportional to 13,120,529.10, 19,680,793.65 and 8,349,369.90 is: 12,524,054.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,120,529.10 : 19,680,793.65 = 8,349,369.90 : x
  2. Step 2: Convert to fraction form
    13,120,529.10/19,680,793.65 = 8,349,369.90/x
  3. Step 3: Cross multiply
    13,120,529.10x = 19,680,793.65 × 8,349,369.90
  4. Step 4: Simplify right side
    13,120,529.10x = 164,322,226,109,421.12
  5. Step 5: Solve for x
    x = 164,322,226,109,421.12/13,120,529.10
  6. Step 6: Final answer
    x = 12,524,054.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.