Home / 189,231,252.18-261,138,640.41-105,598,491.36

Finding the Fourth Proportional to 189,231,252.18, 261,138,640.41 and 105,598,491.36

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Solution

The fourth proportional to 189,231,252.18, 261,138,640.41 and 105,598,491.36 is: 145,725,645.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,231,252.18 : 261,138,640.41 = 105,598,491.36 : x
  2. Step 2: Convert to fraction form
    189,231,252.18/261,138,640.41 = 105,598,491.36/x
  3. Step 3: Cross multiply
    189,231,252.18x = 261,138,640.41 × 105,598,491.36
  4. Step 4: Simplify right side
    189,231,252.18x = 27,575,846,463,097,532
  5. Step 5: Solve for x
    x = 27,575,846,463,097,532/189,231,252.18
  6. Step 6: Final answer
    x = 145,725,645.98

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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.