Home / 12,455,585.60-18,679,879.20-3,938,532.80

Finding the Fourth Proportional to 12,455,585.60, 18,679,879.20 and 3,938,532.80

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Solution

The fourth proportional to 12,455,585.60, 18,679,879.20 and 3,938,532.80 is: 5,906,692.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,585.60 : 18,679,879.20 = 3,938,532.80 : x
  2. Step 2: Convert to fraction form
    12,455,585.60/18,679,879.20 = 3,938,532.80/x
  3. Step 3: Cross multiply
    12,455,585.60x = 18,679,879.20 × 3,938,532.80
  4. Step 4: Simplify right side
    12,455,585.60x = 73,571,316,929,237.75
  5. Step 5: Solve for x
    x = 73,571,316,929,237.75/12,455,585.60
  6. Step 6: Final answer
    x = 5,906,692.73

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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.