Home / 81,176,721.31-121,785,384.62-23,668,992.47

Finding the Fourth Proportional to 81,176,721.31, 121,785,384.62 and 23,668,992.47

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Solution

The fourth proportional to 81,176,721.31, 121,785,384.62 and 23,668,992.47 is: 35,509,408.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,176,721.31 : 121,785,384.62 = 23,668,992.47 : x
  2. Step 2: Convert to fraction form
    81,176,721.31/121,785,384.62 = 23,668,992.47/x
  3. Step 3: Cross multiply
    81,176,721.31x = 121,785,384.62 × 23,668,992.47
  4. Step 4: Simplify right side
    81,176,721.31x = 2,882,537,351,712,952
  5. Step 5: Solve for x
    x = 2,882,537,351,712,952/81,176,721.31
  6. Step 6: Final answer
    x = 35,509,408.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.