Home / 513,458,764.70-770,220,365.60-145,022,565.65

Finding the Fourth Proportional to 513,458,764.70, 770,220,365.60 and 145,022,565.65

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Solution

The fourth proportional to 513,458,764.70, 770,220,365.60 and 145,022,565.65 is: 217,542,948.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,458,764.70 : 770,220,365.60 = 145,022,565.65 : x
  2. Step 2: Convert to fraction form
    513,458,764.70/770,220,365.60 = 145,022,565.65/x
  3. Step 3: Cross multiply
    513,458,764.70x = 770,220,365.60 × 145,022,565.65
  4. Step 4: Simplify right side
    513,458,764.70x = 111,699,333,531,704,464
  5. Step 5: Solve for x
    x = 111,699,333,531,704,464/513,458,764.70
  6. Step 6: Final answer
    x = 217,542,948.36

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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.