Home / 12,163,236.40-18,244,854.60-6,398,085.70

Finding the Fourth Proportional to 12,163,236.40, 18,244,854.60 and 6,398,085.70

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Solution

The fourth proportional to 12,163,236.40, 18,244,854.60 and 6,398,085.70 is: 9,597,128.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,163,236.40 : 18,244,854.60 = 6,398,085.70 : x
  2. Step 2: Convert to fraction form
    12,163,236.40/18,244,854.60 = 6,398,085.70/x
  3. Step 3: Cross multiply
    12,163,236.40x = 18,244,854.60 × 6,398,085.70
  4. Step 4: Simplify right side
    12,163,236.40x = 116,732,143,314,839.23
  5. Step 5: Solve for x
    x = 116,732,143,314,839.23/12,163,236.40
  6. Step 6: Final answer
    x = 9,597,128.55

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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.