Home / 157,290,521.09-217,153,913.72-139,838,556.33

Finding the Fourth Proportional to 157,290,521.09, 217,153,913.72 and 139,838,556.33

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Solution

The fourth proportional to 157,290,521.09, 217,153,913.72 and 139,838,556.33 is: 193,059,884.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,290,521.09 : 217,153,913.72 = 139,838,556.33 : x
  2. Step 2: Convert to fraction form
    157,290,521.09/217,153,913.72 = 139,838,556.33/x
  3. Step 3: Cross multiply
    157,290,521.09x = 217,153,913.72 × 139,838,556.33
  4. Step 4: Simplify right side
    157,290,521.09x = 30,366,489,795,314,992
  5. Step 5: Solve for x
    x = 30,366,489,795,314,992/157,290,521.09
  6. Step 6: Final answer
    x = 193,059,884.26

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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.