Home / 72,797,191.56-100,460,712.06-40,202,143.56

Finding the Fourth Proportional to 72,797,191.56, 100,460,712.06 and 40,202,143.56

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Solution

The fourth proportional to 72,797,191.56, 100,460,712.06 and 40,202,143.56 is: 55,479,282.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,797,191.56 : 100,460,712.06 = 40,202,143.56 : x
  2. Step 2: Convert to fraction form
    72,797,191.56/100,460,712.06 = 40,202,143.56/x
  3. Step 3: Cross multiply
    72,797,191.56x = 100,460,712.06 × 40,202,143.56
  4. Step 4: Simplify right side
    72,797,191.56x = 4,038,735,968,375,943.50
  5. Step 5: Solve for x
    x = 4,038,735,968,375,943.50/72,797,191.56
  6. Step 6: Final answer
    x = 55,479,282.67

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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.