Home / 92,674,469.80-139,011,704.70-85,508,108.20

Finding the Fourth Proportional to 92,674,469.80, 139,011,704.70 and 85,508,108.20

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Solution

The fourth proportional to 92,674,469.80, 139,011,704.70 and 85,508,108.20 is: 128,262,162.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,674,469.80 : 139,011,704.70 = 85,508,108.20 : x
  2. Step 2: Convert to fraction form
    92,674,469.80/139,011,704.70 = 85,508,108.20/x
  3. Step 3: Cross multiply
    92,674,469.80x = 139,011,704.70 × 85,508,108.20
  4. Step 4: Simplify right side
    92,674,469.80x = 11,886,627,886,554,048
  5. Step 5: Solve for x
    x = 11,886,627,886,554,048/92,674,469.80
  6. Step 6: Final answer
    x = 128,262,162.30

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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.