Home / 20,458,829.67-28,233,046.04-11,291,472.42

Finding the Fourth Proportional to 20,458,829.67, 28,233,046.04 and 11,291,472.42

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Solution

The fourth proportional to 20,458,829.67, 28,233,046.04 and 11,291,472.42 is: 15,582,155.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,458,829.67 : 28,233,046.04 = 11,291,472.42 : x
  2. Step 2: Convert to fraction form
    20,458,829.67/28,233,046.04 = 11,291,472.42/x
  3. Step 3: Cross multiply
    20,458,829.67x = 28,233,046.04 × 11,291,472.42
  4. Step 4: Simplify right side
    20,458,829.67x = 318,792,660,636,792.88
  5. Step 5: Solve for x
    x = 318,792,660,636,792.88/20,458,829.67
  6. Step 6: Final answer
    x = 15,582,155.27

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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.