Home / 11,780,492.60-17,660,370.90-7,981,657.40

Finding the Fourth Proportional to 11,780,492.60, 17,660,370.90 and 7,981,657.40

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Solution

The fourth proportional to 11,780,492.60, 17,660,370.90 and 7,981,657.40 is: 11,965,461.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,780,492.60 : 17,660,370.90 = 7,981,657.40 : x
  2. Step 2: Convert to fraction form
    11,780,492.60/17,660,370.90 = 7,981,657.40/x
  3. Step 3: Cross multiply
    11,780,492.60x = 17,660,370.90 × 7,981,657.40
  4. Step 4: Simplify right side
    11,780,492.60x = 140,959,030,080,729.66
  5. Step 5: Solve for x
    x = 140,959,030,080,729.66/11,780,492.60
  6. Step 6: Final answer
    x = 11,965,461.45

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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.