Home / 21,908,817.32-30,231,533.88-12,619,408.55

Finding the Fourth Proportional to 21,908,817.32, 30,231,533.88 and 12,619,408.55

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Solution

The fourth proportional to 21,908,817.32, 30,231,533.88 and 12,619,408.55 is: 17,413,266.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,908,817.32 : 30,231,533.88 = 12,619,408.55 : x
  2. Step 2: Convert to fraction form
    21,908,817.32/30,231,533.88 = 12,619,408.55/x
  3. Step 3: Cross multiply
    21,908,817.32x = 30,231,533.88 × 12,619,408.55
  4. Step 4: Simplify right side
    21,908,817.32x = 381,504,076,973,729
  5. Step 5: Solve for x
    x = 381,504,076,973,729/21,908,817.32
  6. Step 6: Final answer
    x = 17,413,266.61

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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.