Home / 54,973,142.40-82,433,140.80-20,405,708.16

Finding the Fourth Proportional to 54,973,142.40, 82,433,140.80 and 20,405,708.16

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Solution

The fourth proportional to 54,973,142.40, 82,433,140.80 and 20,405,708.16 is: 30,598,698.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,973,142.40 : 82,433,140.80 = 20,405,708.16 : x
  2. Step 2: Convert to fraction form
    54,973,142.40/82,433,140.80 = 20,405,708.16/x
  3. Step 3: Cross multiply
    54,973,142.40x = 82,433,140.80 × 20,405,708.16
  4. Step 4: Simplify right side
    54,973,142.40x = 1,682,106,613,876,989
  5. Step 5: Solve for x
    x = 1,682,106,613,876,989/54,973,142.40
  6. Step 6: Final answer
    x = 30,598,698.57

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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.