Home / 12,290,433.80-18,456,645.90-6,621,729.80

Finding the Fourth Proportional to 12,290,433.80, 18,456,645.90 and 6,621,729.80

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Solution

The fourth proportional to 12,290,433.80, 18,456,645.90 and 6,621,729.80 is: 9,943,906.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290,433.80 : 18,456,645.90 = 6,621,729.80 : x
  2. Step 2: Convert to fraction form
    12,290,433.80/18,456,645.90 = 6,621,729.80/x
  3. Step 3: Cross multiply
    12,290,433.80x = 18,456,645.90 × 6,621,729.80
  4. Step 4: Simplify right side
    12,290,433.80x = 122,214,922,164,077.81
  5. Step 5: Solve for x
    x = 122,214,922,164,077.81/12,290,433.80
  6. Step 6: Final answer
    x = 9,943,906.31

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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.