Home / 121,303,858.92-181,770,635.70-72,022,667.60

Finding the Fourth Proportional to 121,303,858.92, 181,770,635.70 and 72,022,667.60

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Solution

The fourth proportional to 121,303,858.92, 181,770,635.70 and 72,022,667.60 is: 107,924,069.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,303,858.92 : 181,770,635.70 = 72,022,667.60 : x
  2. Step 2: Convert to fraction form
    121,303,858.92/181,770,635.70 = 72,022,667.60/x
  3. Step 3: Cross multiply
    121,303,858.92x = 181,770,635.70 × 72,022,667.60
  4. Step 4: Simplify right side
    121,303,858.92x = 13,091,606,074,461,792
  5. Step 5: Solve for x
    x = 13,091,606,074,461,792/121,303,858.92
  6. Step 6: Final answer
    x = 107,924,069.28

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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.