Home / 209,458,633.03-289,052,912.37-121,403,706.46

Finding the Fourth Proportional to 209,458,633.03, 289,052,912.37 and 121,403,706.46

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Solution

The fourth proportional to 209,458,633.03, 289,052,912.37 and 121,403,706.46 is: 167,537,114.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,458,633.03 : 289,052,912.37 = 121,403,706.46 : x
  2. Step 2: Convert to fraction form
    209,458,633.03/289,052,912.37 = 121,403,706.46/x
  3. Step 3: Cross multiply
    209,458,633.03x = 289,052,912.37 × 121,403,706.46
  4. Step 4: Simplify right side
    209,458,633.03x = 35,092,094,924,775,580
  5. Step 5: Solve for x
    x = 35,092,094,924,775,580/209,458,633.03
  6. Step 6: Final answer
    x = 167,537,114.21

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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.