Home / 213,108,132-294,089,222.40-115,322,988

Finding the Fourth Proportional to 213,108,132, 294,089,222.40 and 115,322,988

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Solution

The fourth proportional to 213,108,132, 294,089,222.40 and 115,322,988 is: 159,145,723.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,108,132 : 294,089,222.40 = 115,322,988 : x
  2. Step 2: Convert to fraction form
    213,108,132/294,089,222.40 = 115,322,988/x
  3. Step 3: Cross multiply
    213,108,132x = 294,089,222.40 × 115,322,988
  4. Step 4: Simplify right side
    213,108,132x = 33,915,247,865,764,528
  5. Step 5: Solve for x
    x = 33,915,247,865,764,528/213,108,132
  6. Step 6: Final answer
    x = 159,145,723.57

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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.