Home / 319,239,900.28-440,550,867.53-172,562,184.28

Finding the Fourth Proportional to 319,239,900.28, 440,550,867.53 and 172,562,184.28

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Solution

The fourth proportional to 319,239,900.28, 440,550,867.53 and 172,562,184.28 is: 238,135,708.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,239,900.28 : 440,550,867.53 = 172,562,184.28 : x
  2. Step 2: Convert to fraction form
    319,239,900.28/440,550,867.53 = 172,562,184.28/x
  3. Step 3: Cross multiply
    319,239,900.28x = 440,550,867.53 × 172,562,184.28
  4. Step 4: Simplify right side
    319,239,900.28x = 76,022,419,985,461,536
  5. Step 5: Solve for x
    x = 76,022,419,985,461,536/319,239,900.28
  6. Step 6: Final answer
    x = 238,135,708.97

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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.