Home / 427,381,620.50-589,780,848.75-239,209,858.46

Finding the Fourth Proportional to 427,381,620.50, 589,780,848.75 and 239,209,858.46

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Solution

The fourth proportional to 427,381,620.50, 589,780,848.75 and 239,209,858.46 is: 330,106,365.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,381,620.50 : 589,780,848.75 = 239,209,858.46 : x
  2. Step 2: Convert to fraction form
    427,381,620.50/589,780,848.75 = 239,209,858.46/x
  3. Step 3: Cross multiply
    427,381,620.50x = 589,780,848.75 × 239,209,858.46
  4. Step 4: Simplify right side
    427,381,620.50x = 141,081,393,351,906,176
  5. Step 5: Solve for x
    x = 141,081,393,351,906,176/427,381,620.50
  6. Step 6: Final answer
    x = 330,106,365.33

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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.