Home / 72,611,140.42-100,203,372.21-40,016,092.42

Finding the Fourth Proportional to 72,611,140.42, 100,203,372.21 and 40,016,092.42

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Solution

The fourth proportional to 72,611,140.42, 100,203,372.21 and 40,016,092.42 is: 55,222,206.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,611,140.42 : 100,203,372.21 = 40,016,092.42 : x
  2. Step 2: Convert to fraction form
    72,611,140.42/100,203,372.21 = 40,016,092.42/x
  3. Step 3: Cross multiply
    72,611,140.42x = 100,203,372.21 × 40,016,092.42
  4. Step 4: Simplify right side
    72,611,140.42x = 4,009,747,403,151,019.50
  5. Step 5: Solve for x
    x = 4,009,747,403,151,019.50/72,611,140.42
  6. Step 6: Final answer
    x = 55,222,206.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.