Home / 145,782,571.60-218,728,930.90-87,530,866.90

Finding the Fourth Proportional to 145,782,571.60, 218,728,930.90 and 87,530,866.90

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Solution

The fourth proportional to 145,782,571.60, 218,728,930.90 and 87,530,866.90 is: 131,329,367.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,782,571.60 : 218,728,930.90 = 87,530,866.90 : x
  2. Step 2: Convert to fraction form
    145,782,571.60/218,728,930.90 = 87,530,866.90/x
  3. Step 3: Cross multiply
    145,782,571.60x = 218,728,930.90 × 87,530,866.90
  4. Step 4: Simplify right side
    145,782,571.60x = 19,145,532,937,787,200
  5. Step 5: Solve for x
    x = 19,145,532,937,787,200/145,782,571.60
  6. Step 6: Final answer
    x = 131,329,367.62

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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.