Home / 71,789,899.70-107,678,206.54-19,975,287.94

Finding the Fourth Proportional to 71,789,899.70, 107,678,206.54 and 19,975,287.94

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Solution

The fourth proportional to 71,789,899.70, 107,678,206.54 and 19,975,287.94 is: 29,961,083.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,789,899.70 : 107,678,206.54 = 19,975,287.94 : x
  2. Step 2: Convert to fraction form
    71,789,899.70/107,678,206.54 = 19,975,287.94/x
  3. Step 3: Cross multiply
    71,789,899.70x = 107,678,206.54 × 19,975,287.94
  4. Step 4: Simplify right side
    71,789,899.70x = 2,150,903,180,158,193
  5. Step 5: Solve for x
    x = 2,150,903,180,158,193/71,789,899.70
  6. Step 6: Final answer
    x = 29,961,083.51

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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.