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Finding the Fourth Proportional to 6,648,507.20, 9,972,760.80 and 2,603,650.70

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Solution

The fourth proportional to 6,648,507.20, 9,972,760.80 and 2,603,650.70 is: 3,905,476.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,648,507.20 : 9,972,760.80 = 2,603,650.70 : x
  2. Step 2: Convert to fraction form
    6,648,507.20/9,972,760.80 = 2,603,650.70/x
  3. Step 3: Cross multiply
    6,648,507.20x = 9,972,760.80 × 2,603,650.70
  4. Step 4: Simplify right side
    6,648,507.20x = 25,965,585,637,852.56
  5. Step 5: Solve for x
    x = 25,965,585,637,852.56/6,648,507.20
  6. Step 6: Final answer
    x = 3,905,476.05

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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.