Home / 30,505,530.48-42,080,059.08-18,275,301.60

Finding the Fourth Proportional to 30,505,530.48, 42,080,059.08 and 18,275,301.60

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Solution

The fourth proportional to 30,505,530.48, 42,080,059.08 and 18,275,301.60 is: 25,209,388.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,505,530.48 : 42,080,059.08 = 18,275,301.60 : x
  2. Step 2: Convert to fraction form
    30,505,530.48/42,080,059.08 = 18,275,301.60/x
  3. Step 3: Cross multiply
    30,505,530.48x = 42,080,059.08 × 18,275,301.60
  4. Step 4: Simplify right side
    30,505,530.48x = 769,025,771,032,818.50
  5. Step 5: Solve for x
    x = 769,025,771,032,818.50/30,505,530.48
  6. Step 6: Final answer
    x = 25,209,388.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.