Home / 172,828,589.47-238,521,936.57-105,891,969.56

Finding the Fourth Proportional to 172,828,589.47, 238,521,936.57 and 105,891,969.56

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Solution

The fourth proportional to 172,828,589.47, 238,521,936.57 and 105,891,969.56 is: 146,142,242.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,828,589.47 : 238,521,936.57 = 105,891,969.56 : x
  2. Step 2: Convert to fraction form
    172,828,589.47/238,521,936.57 = 105,891,969.56/x
  3. Step 3: Cross multiply
    172,828,589.47x = 238,521,936.57 × 105,891,969.56
  4. Step 4: Simplify right side
    172,828,589.47x = 25,257,557,645,072,988
  5. Step 5: Solve for x
    x = 25,257,557,645,072,988/172,828,589.47
  6. Step 6: Final answer
    x = 146,142,242.57

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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.