Home / 30,481,350-42,062,740.20-18,091,982.40

Finding the Fourth Proportional to 30,481,350, 42,062,740.20 and 18,091,982.40

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Solution

The fourth proportional to 30,481,350, 42,062,740.20 and 18,091,982.40 is: 24,966,031.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,481,350 : 42,062,740.20 = 18,091,982.40 : x
  2. Step 2: Convert to fraction form
    30,481,350/42,062,740.20 = 18,091,982.40/x
  3. Step 3: Cross multiply
    30,481,350x = 42,062,740.20 × 18,091,982.40
  4. Step 4: Simplify right side
    30,481,350x = 760,998,355,394,172.50
  5. Step 5: Solve for x
    x = 760,998,355,394,172.50/30,481,350
  6. Step 6: Final answer
    x = 24,966,031.87

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1.5x scale

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.