Home / 140,667,421.20-211,001,131.80-79,193,475.60

Finding the Fourth Proportional to 140,667,421.20, 211,001,131.80 and 79,193,475.60

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Solution

The fourth proportional to 140,667,421.20, 211,001,131.80 and 79,193,475.60 is: 118,790,213.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,667,421.20 : 211,001,131.80 = 79,193,475.60 : x
  2. Step 2: Convert to fraction form
    140,667,421.20/211,001,131.80 = 79,193,475.60/x
  3. Step 3: Cross multiply
    140,667,421.20x = 211,001,131.80 × 79,193,475.60
  4. Step 4: Simplify right side
    140,667,421.20x = 16,709,912,982,775,684
  5. Step 5: Solve for x
    x = 16,709,912,982,775,684/140,667,421.20
  6. Step 6: Final answer
    x = 118,790,213.40

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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.