Home / 5,426,418.70-8,139,628.05-1,640,485.90

Finding the Fourth Proportional to 5,426,418.70, 8,139,628.05 and 1,640,485.90

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Solution

The fourth proportional to 5,426,418.70, 8,139,628.05 and 1,640,485.90 is: 2,460,728.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426,418.70 : 8,139,628.05 = 1,640,485.90 : x
  2. Step 2: Convert to fraction form
    5,426,418.70/8,139,628.05 = 1,640,485.90/x
  3. Step 3: Cross multiply
    5,426,418.70x = 8,139,628.05 × 1,640,485.90
  4. Step 4: Simplify right side
    5,426,418.70x = 13,352,945,047,269.49
  5. Step 5: Solve for x
    x = 13,352,945,047,269.49/5,426,418.70
  6. Step 6: Final answer
    x = 2,460,728.85

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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.