Home / 11,221,078.78-16,831,618.20-8,666,020.52

Finding the Fourth Proportional to 11,221,078.78, 16,831,618.20 and 8,666,020.52

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Solution

The fourth proportional to 11,221,078.78, 16,831,618.20 and 8,666,020.52 is: 12,999,030.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221,078.78 : 16,831,618.20 = 8,666,020.52 : x
  2. Step 2: Convert to fraction form
    11,221,078.78/16,831,618.20 = 8,666,020.52/x
  3. Step 3: Cross multiply
    11,221,078.78x = 16,831,618.20 × 8,666,020.52
  4. Step 4: Simplify right side
    11,221,078.78x = 145,863,148,706,005.44
  5. Step 5: Solve for x
    x = 145,863,148,706,005.44/11,221,078.78
  6. Step 6: Final answer
    x = 12,999,030.80

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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.