Home / 138,718,109.54-191,430,974.77-82,963,521.35

Finding the Fourth Proportional to 138,718,109.54, 191,430,974.77 and 82,963,521.35

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Solution

The fourth proportional to 138,718,109.54, 191,430,974.77 and 82,963,521.35 is: 114,489,649.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,718,109.54 : 191,430,974.77 = 82,963,521.35 : x
  2. Step 2: Convert to fraction form
    138,718,109.54/191,430,974.77 = 82,963,521.35/x
  3. Step 3: Cross multiply
    138,718,109.54x = 191,430,974.77 × 82,963,521.35
  4. Step 4: Simplify right side
    138,718,109.54x = 15,881,787,761,935,508
  5. Step 5: Solve for x
    x = 15,881,787,761,935,508/138,718,109.54
  6. Step 6: Final answer
    x = 114,489,649.65

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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.