Home / 319,441,141.56-440,828,771.94-172,763,425.56

Finding the Fourth Proportional to 319,441,141.56, 440,828,771.94 and 172,763,425.56

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Solution

The fourth proportional to 319,441,141.56, 440,828,771.94 and 172,763,425.56 is: 238,413,525.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,441,141.56 : 440,828,771.94 = 172,763,425.56 : x
  2. Step 2: Convert to fraction form
    319,441,141.56/440,828,771.94 = 172,763,425.56/x
  3. Step 3: Cross multiply
    319,441,141.56x = 440,828,771.94 × 172,763,425.56
  4. Step 4: Simplify right side
    319,441,141.56x = 76,159,088,725,762,400
  5. Step 5: Solve for x
    x = 76,159,088,725,762,400/319,441,141.56
  6. Step 6: Final answer
    x = 238,413,525.43

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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.