Home / 100,220,832.81-150,340,913.36-31,115,081.79

Finding the Fourth Proportional to 100,220,832.81, 150,340,913.36 and 31,115,081.79

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Solution

The fourth proportional to 100,220,832.81, 150,340,913.36 and 31,115,081.79 is: 46,675,623.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,220,832.81 : 150,340,913.36 = 31,115,081.79 : x
  2. Step 2: Convert to fraction form
    100,220,832.81/150,340,913.36 = 31,115,081.79/x
  3. Step 3: Cross multiply
    100,220,832.81x = 150,340,913.36 × 31,115,081.79
  4. Step 4: Simplify right side
    100,220,832.81x = 4,677,869,815,424,128
  5. Step 5: Solve for x
    x = 4,677,869,815,424,128/100,220,832.81
  6. Step 6: Final answer
    x = 46,675,623.06

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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.