Home / 43,452,052.20-65,178,078.30-42,780,205.80

Finding the Fourth Proportional to 43,452,052.20, 65,178,078.30 and 42,780,205.80

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Solution

The fourth proportional to 43,452,052.20, 65,178,078.30 and 42,780,205.80 is: 64,170,308.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,452,052.20 : 65,178,078.30 = 42,780,205.80 : x
  2. Step 2: Convert to fraction form
    43,452,052.20/65,178,078.30 = 42,780,205.80/x
  3. Step 3: Cross multiply
    43,452,052.20x = 65,178,078.30 × 42,780,205.80
  4. Step 4: Simplify right side
    43,452,052.20x = 2,788,331,603,322,514
  5. Step 5: Solve for x
    x = 2,788,331,603,322,514/43,452,052.20
  6. Step 6: Final answer
    x = 64,170,308.70

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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.