Home / 76,629,443.60-114,944,165.40-68,315,344.40

Finding the Fourth Proportional to 76,629,443.60, 114,944,165.40 and 68,315,344.40

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Solution

The fourth proportional to 76,629,443.60, 114,944,165.40 and 68,315,344.40 is: 102,473,016.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,629,443.60 : 114,944,165.40 = 68,315,344.40 : x
  2. Step 2: Convert to fraction form
    76,629,443.60/114,944,165.40 = 68,315,344.40/x
  3. Step 3: Cross multiply
    76,629,443.60x = 114,944,165.40 × 68,315,344.40
  4. Step 4: Simplify right side
    76,629,443.60x = 7,852,450,246,071,565
  5. Step 5: Solve for x
    x = 7,852,450,246,071,565/76,629,443.60
  6. Step 6: Final answer
    x = 102,473,016.60

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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.