Home / 145,782,571.37-218,728,930.53-87,530,866.66

Finding the Fourth Proportional to 145,782,571.37, 218,728,930.53 and 87,530,866.66

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Solution

The fourth proportional to 145,782,571.37, 218,728,930.53 and 87,530,866.66 is: 131,329,367.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,782,571.37 : 218,728,930.53 = 87,530,866.66 : x
  2. Step 2: Convert to fraction form
    145,782,571.37/218,728,930.53 = 87,530,866.66/x
  3. Step 3: Cross multiply
    145,782,571.37x = 218,728,930.53 × 87,530,866.66
  4. Step 4: Simplify right side
    145,782,571.37x = 19,145,532,851,812,188
  5. Step 5: Solve for x
    x = 19,145,532,851,812,188/145,782,571.37
  6. Step 6: Final answer
    x = 131,329,367.23

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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.