Home / 12,290,431.80-18,456,642.90-6,621,727.80

Finding the Fourth Proportional to 12,290,431.80, 18,456,642.90 and 6,621,727.80

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Solution

The fourth proportional to 12,290,431.80, 18,456,642.90 and 6,621,727.80 is: 9,943,903.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290,431.80 : 18,456,642.90 = 6,621,727.80 : x
  2. Step 2: Convert to fraction form
    12,290,431.80/18,456,642.90 = 6,621,727.80/x
  3. Step 3: Cross multiply
    12,290,431.80x = 18,456,642.90 × 6,621,727.80
  4. Step 4: Simplify right side
    12,290,431.80x = 122,214,865,385,602.61
  5. Step 5: Solve for x
    x = 122,214,865,385,602.61/12,290,431.80
  6. Step 6: Final answer
    x = 9,943,903.30

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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.