Home / 100,331,260.20-138,456,858.20-55,683,972.81

Finding the Fourth Proportional to 100,331,260.20, 138,456,858.20 and 55,683,972.81

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Solution

The fourth proportional to 100,331,260.20, 138,456,858.20 and 55,683,972.81 is: 76,843,726.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,331,260.20 : 138,456,858.20 = 55,683,972.81 : x
  2. Step 2: Convert to fraction form
    100,331,260.20/138,456,858.20 = 55,683,972.81/x
  3. Step 3: Cross multiply
    100,331,260.20x = 138,456,858.20 × 55,683,972.81
  4. Step 4: Simplify right side
    100,331,260.20x = 7,709,827,927,088,406
  5. Step 5: Solve for x
    x = 7,709,827,927,088,406/100,331,260.20
  6. Step 6: Final answer
    x = 76,843,726.59

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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.