Home / 11,746,139.60-17,619,209.40-7,728,021.20

Finding the Fourth Proportional to 11,746,139.60, 17,619,209.40 and 7,728,021.20

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Solution

The fourth proportional to 11,746,139.60, 17,619,209.40 and 7,728,021.20 is: 11,592,031.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,746,139.60 : 17,619,209.40 = 7,728,021.20 : x
  2. Step 2: Convert to fraction form
    11,746,139.60/17,619,209.40 = 7,728,021.20/x
  3. Step 3: Cross multiply
    11,746,139.60x = 17,619,209.40 × 7,728,021.20
  4. Step 4: Simplify right side
    11,746,139.60x = 136,161,623,770,439.27
  5. Step 5: Solve for x
    x = 136,161,623,770,439.27/11,746,139.60
  6. Step 6: Final answer
    x = 11,592,031.80

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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.