Home / 12,611,327.76-18,847,889.37-9,206,783.82

Finding the Fourth Proportional to 12,611,327.76, 18,847,889.37 and 9,206,783.82

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Solution

The fourth proportional to 12,611,327.76, 18,847,889.37 and 9,206,783.82 is: 13,759,728.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,611,327.76 : 18,847,889.37 = 9,206,783.82 : x
  2. Step 2: Convert to fraction form
    12,611,327.76/18,847,889.37 = 9,206,783.82/x
  3. Step 3: Cross multiply
    12,611,327.76x = 18,847,889.37 × 9,206,783.82
  4. Step 4: Simplify right side
    12,611,327.76x = 173,528,442,892,866
  5. Step 5: Solve for x
    x = 173,528,442,892,866/12,611,327.76
  6. Step 6: Final answer
    x = 13,759,728.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.