Home / 18,676,138.43-28,012,103.57-5,030,283.59

Finding the Fourth Proportional to 18,676,138.43, 28,012,103.57 and 5,030,283.59

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Solution

The fourth proportional to 18,676,138.43, 28,012,103.57 and 5,030,283.59 is: 7,544,858.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,676,138.43 : 28,012,103.57 = 5,030,283.59 : x
  2. Step 2: Convert to fraction form
    18,676,138.43/28,012,103.57 = 5,030,283.59/x
  3. Step 3: Cross multiply
    18,676,138.43x = 28,012,103.57 × 5,030,283.59
  4. Step 4: Simplify right side
    18,676,138.43x = 140,908,824,744,339.50
  5. Step 5: Solve for x
    x = 140,908,824,744,339.50/18,676,138.43
  6. Step 6: Final answer
    x = 7,544,858.66

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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.