Home / 69,771,143.64-104,648,743.26-18,657,148.44

Finding the Fourth Proportional to 69,771,143.64, 104,648,743.26 and 18,657,148.44

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Solution

The fourth proportional to 69,771,143.64, 104,648,743.26 and 18,657,148.44 is: 27,983,590.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,771,143.64 : 104,648,743.26 = 18,657,148.44 : x
  2. Step 2: Convert to fraction form
    69,771,143.64/104,648,743.26 = 18,657,148.44/x
  3. Step 3: Cross multiply
    69,771,143.64x = 104,648,743.26 × 18,657,148.44
  4. Step 4: Simplify right side
    69,771,143.64x = 1,952,447,137,061,269.75
  5. Step 5: Solve for x
    x = 1,952,447,137,061,269.75/69,771,143.64
  6. Step 6: Final answer
    x = 27,983,590.85

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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.