Home / 155,137,045.48-214,089,770.82-85,520,899

Finding the Fourth Proportional to 155,137,045.48, 214,089,770.82 and 85,520,899

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Solution

The fourth proportional to 155,137,045.48, 214,089,770.82 and 85,520,899 is: 118,019,197.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,137,045.48 : 214,089,770.82 = 85,520,899 : x
  2. Step 2: Convert to fraction form
    155,137,045.48/214,089,770.82 = 85,520,899/x
  3. Step 3: Cross multiply
    155,137,045.48x = 214,089,770.82 × 85,520,899
  4. Step 4: Simplify right side
    155,137,045.48x = 18,309,149,667,230,368
  5. Step 5: Solve for x
    x = 18,309,149,667,230,368/155,137,045.48
  6. Step 6: Final answer
    x = 118,019,197.87

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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.