Home / 11,129,672-16,689,646.56-3,938,816.96

Finding the Fourth Proportional to 11,129,672, 16,689,646.56 and 3,938,816.96

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Solution

The fourth proportional to 11,129,672, 16,689,646.56 and 3,938,816.96 is: 5,906,504.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,129,672 : 16,689,646.56 = 3,938,816.96 : x
  2. Step 2: Convert to fraction form
    11,129,672/16,689,646.56 = 3,938,816.96/x
  3. Step 3: Cross multiply
    11,129,672x = 16,689,646.56 × 3,938,816.96
  4. Step 4: Simplify right side
    11,129,672x = 65,737,462,926,933.66
  5. Step 5: Solve for x
    x = 65,737,462,926,933.66/11,129,672
  6. Step 6: Final answer
    x = 5,906,504.97

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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.