Home / 20,186,323.55-30,243,399.83-12,284,692.55

Finding the Fourth Proportional to 20,186,323.55, 30,243,399.83 and 12,284,692.55

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Solution

The fourth proportional to 20,186,323.55, 30,243,399.83 and 12,284,692.55 is: 18,405,078.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186,323.55 : 30,243,399.83 = 12,284,692.55 : x
  2. Step 2: Convert to fraction form
    20,186,323.55/30,243,399.83 = 12,284,692.55/x
  3. Step 3: Cross multiply
    20,186,323.55x = 30,243,399.83 × 12,284,692.55
  4. Step 4: Simplify right side
    20,186,323.55x = 371,530,868,516,848.81
  5. Step 5: Solve for x
    x = 371,530,868,516,848.81/20,186,323.55
  6. Step 6: Final answer
    x = 18,405,078.45

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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.