Home / 121,069,216.80-181,603,825.20-72,601,797.60

Finding the Fourth Proportional to 121,069,216.80, 181,603,825.20 and 72,601,797.60

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Solution

The fourth proportional to 121,069,216.80, 181,603,825.20 and 72,601,797.60 is: 108,902,696.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,069,216.80 : 181,603,825.20 = 72,601,797.60 : x
  2. Step 2: Convert to fraction form
    121,069,216.80/181,603,825.20 = 72,601,797.60/x
  3. Step 3: Cross multiply
    121,069,216.80x = 181,603,825.20 × 72,601,797.60
  4. Step 4: Simplify right side
    121,069,216.80x = 13,184,764,160,556,178
  5. Step 5: Solve for x
    x = 13,184,764,160,556,178/121,069,216.80
  6. Step 6: Final answer
    x = 108,902,696.40

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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.