Home / 12,963,766.60-19,445,649.90-8,155,865.80

Finding the Fourth Proportional to 12,963,766.60, 19,445,649.90 and 8,155,865.80

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Solution

The fourth proportional to 12,963,766.60, 19,445,649.90 and 8,155,865.80 is: 12,233,798.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,963,766.60 : 19,445,649.90 = 8,155,865.80 : x
  2. Step 2: Convert to fraction form
    12,963,766.60/19,445,649.90 = 8,155,865.80/x
  3. Step 3: Cross multiply
    12,963,766.60x = 19,445,649.90 × 8,155,865.80
  4. Step 4: Simplify right side
    12,963,766.60x = 158,596,110,978,183.41
  5. Step 5: Solve for x
    x = 158,596,110,978,183.41/12,963,766.60
  6. Step 6: Final answer
    x = 12,233,798.70

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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.