Home / 665,575,287.60-996,449,743.80-407,294,961.60

Finding the Fourth Proportional to 665,575,287.60, 996,449,743.80 and 407,294,961.60

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Solution

The fourth proportional to 665,575,287.60, 996,449,743.80 and 407,294,961.60 is: 609,771,678.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,575,287.60 : 996,449,743.80 = 407,294,961.60 : x
  2. Step 2: Convert to fraction form
    665,575,287.60/996,449,743.80 = 407,294,961.60/x
  3. Step 3: Cross multiply
    665,575,287.60x = 996,449,743.80 × 407,294,961.60
  4. Step 4: Simplify right side
    665,575,287.60x = 405,848,960,137,350,848
  5. Step 5: Solve for x
    x = 405,848,960,137,350,848/665,575,287.60
  6. Step 6: Final answer
    x = 609,771,678.27

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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.