Home / 256,189,611.54-353,277,428.40-219,142,538.64

Finding the Fourth Proportional to 256,189,611.54, 353,277,428.40 and 219,142,538.64

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Solution

The fourth proportional to 256,189,611.54, 353,277,428.40 and 219,142,538.64 is: 302,190,678.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,189,611.54 : 353,277,428.40 = 219,142,538.64 : x
  2. Step 2: Convert to fraction form
    256,189,611.54/353,277,428.40 = 219,142,538.64/x
  3. Step 3: Cross multiply
    256,189,611.54x = 353,277,428.40 × 219,142,538.64
  4. Step 4: Simplify right side
    256,189,611.54x = 77,418,112,503,786,816
  5. Step 5: Solve for x
    x = 77,418,112,503,786,816/256,189,611.54
  6. Step 6: Final answer
    x = 302,190,678.37

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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.