Home / 72,579,426.20-108,869,139.30-41,968,424.60

Finding the Fourth Proportional to 72,579,426.20, 108,869,139.30 and 41,968,424.60

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Solution

The fourth proportional to 72,579,426.20, 108,869,139.30 and 41,968,424.60 is: 62,952,636.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,579,426.20 : 108,869,139.30 = 41,968,424.60 : x
  2. Step 2: Convert to fraction form
    72,579,426.20/108,869,139.30 = 41,968,424.60/x
  3. Step 3: Cross multiply
    72,579,426.20x = 108,869,139.30 × 41,968,424.60
  4. Step 4: Simplify right side
    72,579,426.20x = 4,569,066,263,978,947
  5. Step 5: Solve for x
    x = 4,569,066,263,978,947/72,579,426.20
  6. Step 6: Final answer
    x = 62,952,636.90

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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.