Home / 127,786,048.50-191,610,874.80-66,313,311.42

Finding the Fourth Proportional to 127,786,048.50, 191,610,874.80 and 66,313,311.42

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Solution

The fourth proportional to 127,786,048.50, 191,610,874.80 and 66,313,311.42 is: 99,434,576.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,786,048.50 : 191,610,874.80 = 66,313,311.42 : x
  2. Step 2: Convert to fraction form
    127,786,048.50/191,610,874.80 = 66,313,311.42/x
  3. Step 3: Cross multiply
    127,786,048.50x = 191,610,874.80 × 66,313,311.42
  4. Step 4: Simplify right side
    127,786,048.50x = 12,706,351,612,071,032
  5. Step 5: Solve for x
    x = 12,706,351,612,071,032/127,786,048.50
  6. Step 6: Final answer
    x = 99,434,576.48

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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.