Home / 68,459,937.46-102,723,121.32-30,116,469.40

Finding the Fourth Proportional to 68,459,937.46, 102,723,121.32 and 30,116,469.40

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Solution

The fourth proportional to 68,459,937.46, 102,723,121.32 and 30,116,469.40 is: 45,189,315.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,459,937.46 : 102,723,121.32 = 30,116,469.40 : x
  2. Step 2: Convert to fraction form
    68,459,937.46/102,723,121.32 = 30,116,469.40/x
  3. Step 3: Cross multiply
    68,459,937.46x = 102,723,121.32 × 30,116,469.40
  4. Step 4: Simplify right side
    68,459,937.46x = 3,093,657,739,906,267
  5. Step 5: Solve for x
    x = 3,093,657,739,906,267/68,459,937.46
  6. Step 6: Final answer
    x = 45,189,315.89

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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.