Home / 140,894,903.26-194,428,379.12-78,170,333.67

Finding the Fourth Proportional to 140,894,903.26, 194,428,379.12 and 78,170,333.67

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Solution

The fourth proportional to 140,894,903.26, 194,428,379.12 and 78,170,333.67 is: 107,871,405.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,894,903.26 : 194,428,379.12 = 78,170,333.67 : x
  2. Step 2: Convert to fraction form
    140,894,903.26/194,428,379.12 = 78,170,333.67/x
  3. Step 3: Cross multiply
    140,894,903.26x = 194,428,379.12 × 78,170,333.67
  4. Step 4: Simplify right side
    140,894,903.26x = 15,198,531,271,433,078
  5. Step 5: Solve for x
    x = 15,198,531,271,433,078/140,894,903.26
  6. Step 6: Final answer
    x = 107,871,405.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.