Home / 12,275,320.80-18,411,231.60-4,188,669.60

Finding the Fourth Proportional to 12,275,320.80, 18,411,231.60 and 4,188,669.60

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Solution

The fourth proportional to 12,275,320.80, 18,411,231.60 and 4,188,669.60 is: 6,282,407.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,275,320.80 : 18,411,231.60 = 4,188,669.60 : x
  2. Step 2: Convert to fraction form
    12,275,320.80/18,411,231.60 = 4,188,669.60/x
  3. Step 3: Cross multiply
    12,275,320.80x = 18,411,231.60 × 4,188,669.60
  4. Step 4: Simplify right side
    12,275,320.80x = 77,118,566,101,479.38
  5. Step 5: Solve for x
    x = 77,118,566,101,479.38/12,275,320.80
  6. Step 6: Final answer
    x = 6,282,407.39

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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.