Home / 74,645,913.12-111,968,772.30-20,058,499.32

Finding the Fourth Proportional to 74,645,913.12, 111,968,772.30 and 20,058,499.32

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Solution

The fourth proportional to 74,645,913.12, 111,968,772.30 and 20,058,499.32 is: 30,087,722.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,645,913.12 : 111,968,772.30 = 20,058,499.32 : x
  2. Step 2: Convert to fraction form
    74,645,913.12/111,968,772.30 = 20,058,499.32/x
  3. Step 3: Cross multiply
    74,645,913.12x = 111,968,772.30 × 20,058,499.32
  4. Step 4: Simplify right side
    74,645,913.12x = 2,245,925,543,040,784.75
  5. Step 5: Solve for x
    x = 2,245,925,543,040,784.75/74,645,913.12
  6. Step 6: Final answer
    x = 30,087,722.81

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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.