Home / 5,430,067.40-8,146,022.70-1,643,520.20

Finding the Fourth Proportional to 5,430,067.40, 8,146,022.70 and 1,643,520.20

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Solution

The fourth proportional to 5,430,067.40, 8,146,022.70 and 1,643,520.20 is: 2,465,559.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430,067.40 : 8,146,022.70 = 1,643,520.20 : x
  2. Step 2: Convert to fraction form
    5,430,067.40/8,146,022.70 = 1,643,520.20/x
  3. Step 3: Cross multiply
    5,430,067.40x = 8,146,022.70 × 1,643,520.20
  4. Step 4: Simplify right side
    5,430,067.40x = 13,388,152,857,108.54
  5. Step 5: Solve for x
    x = 13,388,152,857,108.54/5,430,067.40
  6. Step 6: Final answer
    x = 2,465,559.24

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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.