Home / 138,137,111.50-190,629,822.73-76,257,958.54

Finding the Fourth Proportional to 138,137,111.50, 190,629,822.73 and 76,257,958.54

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Solution

The fourth proportional to 138,137,111.50, 190,629,822.73 and 76,257,958.54 is: 105,236,318.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,137,111.50 : 190,629,822.73 = 76,257,958.54 : x
  2. Step 2: Convert to fraction form
    138,137,111.50/190,629,822.73 = 76,257,958.54/x
  3. Step 3: Cross multiply
    138,137,111.50x = 190,629,822.73 × 76,257,958.54
  4. Step 4: Simplify right side
    138,137,111.50x = 14,537,041,117,945,958
  5. Step 5: Solve for x
    x = 14,537,041,117,945,958/138,137,111.50
  6. Step 6: Final answer
    x = 105,236,318.90

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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.