Home / 68,905,914.80-103,353,448.41-30,043,449.68

Finding the Fourth Proportional to 68,905,914.80, 103,353,448.41 and 30,043,449.68

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Solution

The fourth proportional to 68,905,914.80, 103,353,448.41 and 30,043,449.68 is: 45,062,809.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,905,914.80 : 103,353,448.41 = 30,043,449.68 : x
  2. Step 2: Convert to fraction form
    68,905,914.80/103,353,448.41 = 30,043,449.68/x
  3. Step 3: Cross multiply
    68,905,914.80x = 103,353,448.41 × 30,043,449.68
  4. Step 4: Simplify right side
    68,905,914.80x = 3,105,094,126,043,543.50
  5. Step 5: Solve for x
    x = 3,105,094,126,043,543.50/68,905,914.80
  6. Step 6: Final answer
    x = 45,062,809.71

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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.