Home / 289,092,733,958.51-398,957,540,469.75-158,886,203,782.04

Finding the Fourth Proportional to 289,092,733,958.51, 398,957,540,469.75 and 158,886,203,782.04

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Solution

The fourth proportional to 289,092,733,958.51, 398,957,540,469.75 and 158,886,203,782.04 is: 219,268,219,603.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,092,733,958.51 : 398,957,540,469.75 = 158,886,203,782.04 : x
  2. Step 2: Convert to fraction form
    289,092,733,958.51/398,957,540,469.75 = 158,886,203,782.04/x
  3. Step 3: Cross multiply
    289,092,733,958.51x = 398,957,540,469.75 × 158,886,203,782.04
  4. Step 4: Simplify right side
    289,092,733,958.51x = 63,388,849,075,458,175,664,128
  5. Step 5: Solve for x
    x = 63,388,849,075,458,175,664,128/289,092,733,958.51
  6. Step 6: Final answer
    x = 219,268,219,603.73

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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.