Home / 12,609,122.40-18,927,680.40-7,822,216.80

Finding the Fourth Proportional to 12,609,122.40, 18,927,680.40 and 7,822,216.80

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Solution

The fourth proportional to 12,609,122.40, 18,927,680.40 and 7,822,216.80 is: 11,742,008.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,609,122.40 : 18,927,680.40 = 7,822,216.80 : x
  2. Step 2: Convert to fraction form
    12,609,122.40/18,927,680.40 = 7,822,216.80/x
  3. Step 3: Cross multiply
    12,609,122.40x = 18,927,680.40 × 7,822,216.80
  4. Step 4: Simplify right side
    12,609,122.40x = 148,056,419,609,910.72
  5. Step 5: Solve for x
    x = 148,056,419,609,910.72/12,609,122.40
  6. Step 6: Final answer
    x = 11,742,008.28

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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.