Home / 74,187,705.70-111,229,718.55-43,879,968.10

Finding the Fourth Proportional to 74,187,705.70, 111,229,718.55 and 43,879,968.10

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Solution

The fourth proportional to 74,187,705.70, 111,229,718.55 and 43,879,968.10 is: 65,789,290.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,187,705.70 : 111,229,718.55 = 43,879,968.10 : x
  2. Step 2: Convert to fraction form
    74,187,705.70/111,229,718.55 = 43,879,968.10/x
  3. Step 3: Cross multiply
    74,187,705.70x = 111,229,718.55 × 43,879,968.10
  4. Step 4: Simplify right side
    74,187,705.70x = 4,880,756,501,745,978
  5. Step 5: Solve for x
    x = 4,880,756,501,745,978/74,187,705.70
  6. Step 6: Final answer
    x = 65,789,290.23

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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.