Home / 12,793,028.60-19,164,659.70-7,729,297.40

Finding the Fourth Proportional to 12,793,028.60, 19,164,659.70 and 7,729,297.40

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Solution

The fourth proportional to 12,793,028.60, 19,164,659.70 and 7,729,297.40 is: 11,578,912.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,793,028.60 : 19,164,659.70 = 7,729,297.40 : x
  2. Step 2: Convert to fraction form
    12,793,028.60/19,164,659.70 = 7,729,297.40/x
  3. Step 3: Cross multiply
    12,793,028.60x = 19,164,659.70 × 7,729,297.40
  4. Step 4: Simplify right side
    12,793,028.60x = 148,129,354,391,094.78
  5. Step 5: Solve for x
    x = 148,129,354,391,094.78/12,793,028.60
  6. Step 6: Final answer
    x = 11,578,912.16

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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.