Home / 216,586,420.85-324,910,509.35-71,031,374.57

Finding the Fourth Proportional to 216,586,420.85, 324,910,509.35 and 71,031,374.57

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Solution

The fourth proportional to 216,586,420.85, 324,910,509.35 and 71,031,374.57 is: 106,557,188.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,586,420.85 : 324,910,509.35 = 71,031,374.57 : x
  2. Step 2: Convert to fraction form
    216,586,420.85/324,910,509.35 = 71,031,374.57/x
  3. Step 3: Cross multiply
    216,586,420.85x = 324,910,509.35 × 71,031,374.57
  4. Step 4: Simplify right side
    216,586,420.85x = 23,078,840,089,389,628
  5. Step 5: Solve for x
    x = 23,078,840,089,389,628/216,586,420.85
  6. Step 6: Final answer
    x = 106,557,188.58

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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.