Home / 665,575,257.60-996,449,698.80-407,294,931.60

Finding the Fourth Proportional to 665,575,257.60, 996,449,698.80 and 407,294,931.60

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Solution

The fourth proportional to 665,575,257.60, 996,449,698.80 and 407,294,931.60 is: 609,771,633.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,575,257.60 : 996,449,698.80 = 407,294,931.60 : x
  2. Step 2: Convert to fraction form
    665,575,257.60/996,449,698.80 = 407,294,931.60/x
  3. Step 3: Cross multiply
    665,575,257.60x = 996,449,698.80 × 407,294,931.60
  4. Step 4: Simplify right side
    665,575,257.60x = 405,848,911,915,586,624
  5. Step 5: Solve for x
    x = 405,848,911,915,586,624/665,575,257.60
  6. Step 6: Final answer
    x = 609,771,633.31

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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.