Home / 5,184,003.20-7,776,004.80-1,638,147.20

Finding the Fourth Proportional to 5,184,003.20, 7,776,004.80 and 1,638,147.20

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Solution

The fourth proportional to 5,184,003.20, 7,776,004.80 and 1,638,147.20 is: 2,457,220.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,184,003.20 : 7,776,004.80 = 1,638,147.20 : x
  2. Step 2: Convert to fraction form
    5,184,003.20/7,776,004.80 = 1,638,147.20/x
  3. Step 3: Cross multiply
    5,184,003.20x = 7,776,004.80 × 1,638,147.20
  4. Step 4: Simplify right side
    5,184,003.20x = 12,738,240,490,306.56
  5. Step 5: Solve for x
    x = 12,738,240,490,306.56/5,184,003.20
  6. Step 6: Final answer
    x = 2,457,220.80

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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.