Home / 69,771,142.64-104,648,741.76-18,657,147.44

Finding the Fourth Proportional to 69,771,142.64, 104,648,741.76 and 18,657,147.44

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Solution

The fourth proportional to 69,771,142.64, 104,648,741.76 and 18,657,147.44 is: 27,983,589.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,771,142.64 : 104,648,741.76 = 18,657,147.44 : x
  2. Step 2: Convert to fraction form
    69,771,142.64/104,648,741.76 = 18,657,147.44/x
  3. Step 3: Cross multiply
    69,771,142.64x = 104,648,741.76 × 18,657,147.44
  4. Step 4: Simplify right side
    69,771,142.64x = 1,952,447,004,426,805.25
  5. Step 5: Solve for x
    x = 1,952,447,004,426,805.25/69,771,142.64
  6. Step 6: Final answer
    x = 27,983,589.35

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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.