Home / 68,124,638.22-102,185,994.86-31,712,662.86

Finding the Fourth Proportional to 68,124,638.22, 102,185,994.86 and 31,712,662.86

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Solution

The fourth proportional to 68,124,638.22, 102,185,994.86 and 31,712,662.86 is: 47,568,546.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,124,638.22 : 102,185,994.86 = 31,712,662.86 : x
  2. Step 2: Convert to fraction form
    68,124,638.22/102,185,994.86 = 31,712,662.86/x
  3. Step 3: Cross multiply
    68,124,638.22x = 102,185,994.86 × 31,712,662.86
  4. Step 4: Simplify right side
    68,124,638.22x = 3,240,590,004,008,873
  5. Step 5: Solve for x
    x = 3,240,590,004,008,873/68,124,638.22
  6. Step 6: Final answer
    x = 47,568,546.25

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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.