Home / 12,869,019.18-19,297,635.48-7,683,982.52

Finding the Fourth Proportional to 12,869,019.18, 19,297,635.48 and 7,683,982.52

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Solution

The fourth proportional to 12,869,019.18, 19,297,635.48 and 7,683,982.52 is: 11,522,454.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,869,019.18 : 19,297,635.48 = 7,683,982.52 : x
  2. Step 2: Convert to fraction form
    12,869,019.18/19,297,635.48 = 7,683,982.52/x
  3. Step 3: Cross multiply
    12,869,019.18x = 19,297,635.48 × 7,683,982.52
  4. Step 4: Simplify right side
    12,869,019.18x = 148,282,693,609,163.62
  5. Step 5: Solve for x
    x = 148,282,693,609,163.62/12,869,019.18
  6. Step 6: Final answer
    x = 11,522,454.94

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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.