Home / 76,628,358.10-114,942,537.15-68,314,258.90

Finding the Fourth Proportional to 76,628,358.10, 114,942,537.15 and 68,314,258.90

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Solution

The fourth proportional to 76,628,358.10, 114,942,537.15 and 68,314,258.90 is: 102,471,388.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,628,358.10 : 114,942,537.15 = 68,314,258.90 : x
  2. Step 2: Convert to fraction form
    76,628,358.10/114,942,537.15 = 68,314,258.90/x
  3. Step 3: Cross multiply
    76,628,358.10x = 114,942,537.15 × 68,314,258.90
  4. Step 4: Simplify right side
    76,628,358.10x = 7,852,214,241,487,969
  5. Step 5: Solve for x
    x = 7,852,214,241,487,969/76,628,358.10
  6. Step 6: Final answer
    x = 102,471,388.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.