Home / 30,310,153.75-45,493,974.36-18,760,684.88

Finding the Fourth Proportional to 30,310,153.75, 45,493,974.36 and 18,760,684.88

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Solution

The fourth proportional to 30,310,153.75, 45,493,974.36 and 18,760,684.88 is: 28,158,818.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,310,153.75 : 45,493,974.36 = 18,760,684.88 : x
  2. Step 2: Convert to fraction form
    30,310,153.75/45,493,974.36 = 18,760,684.88/x
  3. Step 3: Cross multiply
    30,310,153.75x = 45,493,974.36 × 18,760,684.88
  4. Step 4: Simplify right side
    30,310,153.75x = 853,498,116,679,289.75
  5. Step 5: Solve for x
    x = 853,498,116,679,289.75/30,310,153.75
  6. Step 6: Final answer
    x = 28,158,818.46

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1.5x scale

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.