Home / 21,907,750.78-30,232,322.58-12,118,187.44

Finding the Fourth Proportional to 21,907,750.78, 30,232,322.58 and 12,118,187.44

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Solution

The fourth proportional to 21,907,750.78, 30,232,322.58 and 12,118,187.44 is: 16,722,892.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,907,750.78 : 30,232,322.58 = 12,118,187.44 : x
  2. Step 2: Convert to fraction form
    21,907,750.78/30,232,322.58 = 12,118,187.44/x
  3. Step 3: Cross multiply
    21,907,750.78x = 30,232,322.58 × 12,118,187.44
  4. Step 4: Simplify right side
    21,907,750.78x = 366,360,951,770,984.38
  5. Step 5: Solve for x
    x = 366,360,951,770,984.38/21,907,750.78
  6. Step 6: Final answer
    x = 16,722,892.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.