Home / 172,609,857.63-238,258,369.62-137,392,262.91

Finding the Fourth Proportional to 172,609,857.63, 238,258,369.62 and 137,392,262.91

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Solution

The fourth proportional to 172,609,857.63, 238,258,369.62 and 137,392,262.91 is: 189,646,506.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,609,857.63 : 238,258,369.62 = 137,392,262.91 : x
  2. Step 2: Convert to fraction form
    172,609,857.63/238,258,369.62 = 137,392,262.91/x
  3. Step 3: Cross multiply
    172,609,857.63x = 238,258,369.62 × 137,392,262.91
  4. Step 4: Simplify right side
    172,609,857.63x = 32,734,856,559,338,996
  5. Step 5: Solve for x
    x = 32,734,856,559,338,996/172,609,857.63
  6. Step 6: Final answer
    x = 189,646,506.92

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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.