Home / 30,969,743.76-42,740,640.36-18,580,303.44

Finding the Fourth Proportional to 30,969,743.76, 42,740,640.36 and 18,580,303.44

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Solution

The fourth proportional to 30,969,743.76, 42,740,640.36 and 18,580,303.44 is: 25,642,255.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,969,743.76 : 42,740,640.36 = 18,580,303.44 : x
  2. Step 2: Convert to fraction form
    30,969,743.76/42,740,640.36 = 18,580,303.44/x
  3. Step 3: Cross multiply
    30,969,743.76x = 42,740,640.36 × 18,580,303.44
  4. Step 4: Simplify right side
    30,969,743.76x = 794,134,067,108,710.88
  5. Step 5: Solve for x
    x = 794,134,067,108,710.88/30,969,743.76
  6. Step 6: Final answer
    x = 25,642,255.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.