Home / 15,153,683.92-20,917,067.40-12,061,878.64

Finding the Fourth Proportional to 15,153,683.92, 20,917,067.40 and 12,061,878.64

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Solution

The fourth proportional to 15,153,683.92, 20,917,067.40 and 12,061,878.64 is: 16,649,359.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,153,683.92 : 20,917,067.40 = 12,061,878.64 : x
  2. Step 2: Convert to fraction form
    15,153,683.92/20,917,067.40 = 12,061,878.64/x
  3. Step 3: Cross multiply
    15,153,683.92x = 20,917,067.40 × 12,061,878.64
  4. Step 4: Simplify right side
    15,153,683.92x = 252,299,128,483,500.34
  5. Step 5: Solve for x
    x = 252,299,128,483,500.34/15,153,683.92
  6. Step 6: Final answer
    x = 16,649,359.31

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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.