Home / 137,096,496.40-189,193,164.96-78,360,422.64

Finding the Fourth Proportional to 137,096,496.40, 189,193,164.96 and 78,360,422.64

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Solution

The fourth proportional to 137,096,496.40, 189,193,164.96 and 78,360,422.64 is: 108,137,383.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,096,496.40 : 189,193,164.96 = 78,360,422.64 : x
  2. Step 2: Convert to fraction form
    137,096,496.40/189,193,164.96 = 78,360,422.64/x
  3. Step 3: Cross multiply
    137,096,496.40x = 189,193,164.96 × 78,360,422.64
  4. Step 4: Simplify right side
    137,096,496.40x = 14,825,256,366,864,840
  5. Step 5: Solve for x
    x = 14,825,256,366,864,840/137,096,496.40
  6. Step 6: Final answer
    x = 108,137,383.20

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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.