Home / 20,368,742.55-28,109,603.85-11,668,596.63

Finding the Fourth Proportional to 20,368,742.55, 28,109,603.85 and 11,668,596.63

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Solution

The fourth proportional to 20,368,742.55, 28,109,603.85 and 11,668,596.63 is: 16,103,086.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,368,742.55 : 28,109,603.85 = 11,668,596.63 : x
  2. Step 2: Convert to fraction form
    20,368,742.55/28,109,603.85 = 11,668,596.63/x
  3. Step 3: Cross multiply
    20,368,742.55x = 28,109,603.85 × 11,668,596.63
  4. Step 4: Simplify right side
    20,368,742.55x = 327,999,628,754,745.06
  5. Step 5: Solve for x
    x = 327,999,628,754,745.06/20,368,742.55
  6. Step 6: Final answer
    x = 16,103,086.77

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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.