Home / 80,627,175.08-120,352,153.72-69,186,163.77

Finding the Fourth Proportional to 80,627,175.08, 120,352,153.72 and 69,186,163.77

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Solution

The fourth proportional to 80,627,175.08, 120,352,153.72 and 69,186,163.77 is: 103,274,160.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,627,175.08 : 120,352,153.72 = 69,186,163.77 : x
  2. Step 2: Convert to fraction form
    80,627,175.08/120,352,153.72 = 69,186,163.77/x
  3. Step 3: Cross multiply
    80,627,175.08x = 120,352,153.72 × 69,186,163.77
  4. Step 4: Simplify right side
    80,627,175.08x = 8,326,703,817,344,134
  5. Step 5: Solve for x
    x = 8,326,703,817,344,134/80,627,175.08
  6. Step 6: Final answer
    x = 103,274,160.47

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.