Home / 138,137,114.25-190,629,826.53-76,257,961.29

Finding the Fourth Proportional to 138,137,114.25, 190,629,826.53 and 76,257,961.29

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Solution

The fourth proportional to 138,137,114.25, 190,629,826.53 and 76,257,961.29 is: 105,236,322.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,137,114.25 : 190,629,826.53 = 76,257,961.29 : x
  2. Step 2: Convert to fraction form
    138,137,114.25/190,629,826.53 = 76,257,961.29/x
  3. Step 3: Cross multiply
    138,137,114.25x = 190,629,826.53 × 76,257,961.29
  4. Step 4: Simplify right side
    138,137,114.25x = 14,537,041,932,244,156
  5. Step 5: Solve for x
    x = 14,537,041,932,244,156/138,137,114.25
  6. Step 6: Final answer
    x = 105,236,322.70

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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.