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Finding the Fourth Proportional to 12,798,597.60, 19,197,896.40 and 9,397,375.20

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Solution

The fourth proportional to 12,798,597.60, 19,197,896.40 and 9,397,375.20 is: 14,096,062.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,798,597.60 : 19,197,896.40 = 9,397,375.20 : x
  2. Step 2: Convert to fraction form
    12,798,597.60/19,197,896.40 = 9,397,375.20/x
  3. Step 3: Cross multiply
    12,798,597.60x = 19,197,896.40 × 9,397,375.20
  4. Step 4: Simplify right side
    12,798,597.60x = 180,409,835,521,529.25
  5. Step 5: Solve for x
    x = 180,409,835,521,529.25/12,798,597.60
  6. Step 6: Final answer
    x = 14,096,062.80

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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.