Home / 30,505,528.98-42,080,057.01-18,275,300.10

Finding the Fourth Proportional to 30,505,528.98, 42,080,057.01 and 18,275,300.10

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Solution

The fourth proportional to 30,505,528.98, 42,080,057.01 and 18,275,300.10 is: 25,209,386.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,505,528.98 : 42,080,057.01 = 18,275,300.10 : x
  2. Step 2: Convert to fraction form
    30,505,528.98/42,080,057.01 = 18,275,300.10/x
  3. Step 3: Cross multiply
    30,505,528.98x = 42,080,057.01 × 18,275,300.10
  4. Step 4: Simplify right side
    30,505,528.98x = 769,025,670,082,858.75
  5. Step 5: Solve for x
    x = 769,025,670,082,858.75/30,505,528.98
  6. Step 6: Final answer
    x = 25,209,386.49

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1.5x scale

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.