Home / 30,611,668.72-42,244,101.60-16,860,633.28

Finding the Fourth Proportional to 30,611,668.72, 42,244,101.60 and 16,860,633.28

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Solution

The fourth proportional to 30,611,668.72, 42,244,101.60 and 16,860,633.28 is: 23,267,673.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,611,668.72 : 42,244,101.60 = 16,860,633.28 : x
  2. Step 2: Convert to fraction form
    30,611,668.72/42,244,101.60 = 16,860,633.28/x
  3. Step 3: Cross multiply
    30,611,668.72x = 42,244,101.60 × 16,860,633.28
  4. Step 4: Simplify right side
    30,611,668.72x = 712,262,305,320,661.38
  5. Step 5: Solve for x
    x = 712,262,305,320,661.38/30,611,668.72
  6. Step 6: Final answer
    x = 23,267,673.25

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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.