Home / 54,328,690.60-81,465,042.30-20,232,485.80

Finding the Fourth Proportional to 54,328,690.60, 81,465,042.30 and 20,232,485.80

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Solution

The fourth proportional to 54,328,690.60, 81,465,042.30 and 20,232,485.80 is: 30,338,303.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,328,690.60 : 81,465,042.30 = 20,232,485.80 : x
  2. Step 2: Convert to fraction form
    54,328,690.60/81,465,042.30 = 20,232,485.80/x
  3. Step 3: Cross multiply
    54,328,690.60x = 81,465,042.30 × 20,232,485.80
  4. Step 4: Simplify right side
    54,328,690.60x = 1,648,240,311,531,149.25
  5. Step 5: Solve for x
    x = 1,648,240,311,531,149.25/54,328,690.60
  6. Step 6: Final answer
    x = 30,338,303.64

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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.