Home / 426,494,208.27-639,765,243.05-119,762,406.03

Finding the Fourth Proportional to 426,494,208.27, 639,765,243.05 and 119,762,406.03

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Solution

The fourth proportional to 426,494,208.27, 639,765,243.05 and 119,762,406.03 is: 179,650,328.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,494,208.27 : 639,765,243.05 = 119,762,406.03 : x
  2. Step 2: Convert to fraction form
    426,494,208.27/639,765,243.05 = 119,762,406.03/x
  3. Step 3: Cross multiply
    426,494,208.27x = 639,765,243.05 × 119,762,406.03
  4. Step 4: Simplify right side
    426,494,208.27x = 76,619,824,801,436,912
  5. Step 5: Solve for x
    x = 76,619,824,801,436,912/426,494,208.27
  6. Step 6: Final answer
    x = 179,650,328.93

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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.