Home / 18,536,478.40-27,804,717.60-17,780,651.20

Finding the Fourth Proportional to 18,536,478.40, 27,804,717.60 and 17,780,651.20

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Solution

The fourth proportional to 18,536,478.40, 27,804,717.60 and 17,780,651.20 is: 26,670,976.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,536,478.40 : 27,804,717.60 = 17,780,651.20 : x
  2. Step 2: Convert to fraction form
    18,536,478.40/27,804,717.60 = 17,780,651.20/x
  3. Step 3: Cross multiply
    18,536,478.40x = 27,804,717.60 × 17,780,651.20
  4. Step 4: Simplify right side
    18,536,478.40x = 494,385,985,360,101.12
  5. Step 5: Solve for x
    x = 494,385,985,360,101.12/18,536,478.40
  6. Step 6: Final answer
    x = 26,670,976.80

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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.