Home / 91,146,234.40-136,782,337.20-65,609,072.80

Finding the Fourth Proportional to 91,146,234.40, 136,782,337.20 and 65,609,072.80

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Solution

The fourth proportional to 91,146,234.40, 136,782,337.20 and 65,609,072.80 is: 98,458,947.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,146,234.40 : 136,782,337.20 = 65,609,072.80 : x
  2. Step 2: Convert to fraction form
    91,146,234.40/136,782,337.20 = 65,609,072.80/x
  3. Step 3: Cross multiply
    91,146,234.40x = 136,782,337.20 × 65,609,072.80
  4. Step 4: Simplify right side
    91,146,234.40x = 8,974,162,319,108,947
  5. Step 5: Solve for x
    x = 8,974,162,319,108,947/91,146,234.40
  6. Step 6: Final answer
    x = 98,458,947.63

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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.