Home / 71,109,820.34-98,139,516.06-40,171,982.52

Finding the Fourth Proportional to 71,109,820.34, 98,139,516.06 and 40,171,982.52

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Solution

The fourth proportional to 71,109,820.34, 98,139,516.06 and 40,171,982.52 is: 55,441,834.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,109,820.34 : 98,139,516.06 = 40,171,982.52 : x
  2. Step 2: Convert to fraction form
    71,109,820.34/98,139,516.06 = 40,171,982.52/x
  3. Step 3: Cross multiply
    71,109,820.34x = 98,139,516.06 × 40,171,982.52
  4. Step 4: Simplify right side
    71,109,820.34x = 3,942,458,923,683,579.50
  5. Step 5: Solve for x
    x = 3,942,458,923,683,579.50/71,109,820.34
  6. Step 6: Final answer
    x = 55,441,834.97

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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.