Home / 13,904,175.65-20,829,361.50-7,820,422.79

Finding the Fourth Proportional to 13,904,175.65, 20,829,361.50 and 7,820,422.79

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Solution

The fourth proportional to 13,904,175.65, 20,829,361.50 and 7,820,422.79 is: 11,715,503.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,904,175.65 : 20,829,361.50 = 7,820,422.79 : x
  2. Step 2: Convert to fraction form
    13,904,175.65/20,829,361.50 = 7,820,422.79/x
  3. Step 3: Cross multiply
    13,904,175.65x = 20,829,361.50 × 7,820,422.79
  4. Step 4: Simplify right side
    13,904,175.65x = 162,894,413,271,601.78
  5. Step 5: Solve for x
    x = 162,894,413,271,601.78/13,904,175.65
  6. Step 6: Final answer
    x = 11,715,503.13

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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.