Home / 319,240,112.67-440,551,160.63-172,562,396.67

Finding the Fourth Proportional to 319,240,112.67, 440,551,160.63 and 172,562,396.67

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Solution

The fourth proportional to 319,240,112.67, 440,551,160.63 and 172,562,396.67 is: 238,136,002.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,240,112.67 : 440,551,160.63 = 172,562,396.67 : x
  2. Step 2: Convert to fraction form
    319,240,112.67/440,551,160.63 = 172,562,396.67/x
  3. Step 3: Cross multiply
    319,240,112.67x = 440,551,160.63 × 172,562,396.67
  4. Step 4: Simplify right side
    319,240,112.67x = 76,022,564,133,200,128
  5. Step 5: Solve for x
    x = 76,022,564,133,200,128/319,240,112.67
  6. Step 6: Final answer
    x = 238,136,002.07

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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.