Home / 18,762,640,349.96-28,148,724,282.35-8,685,618,198.68

Finding the Fourth Proportional to 18,762,640,349.96, 28,148,724,282.35 and 8,685,618,198.68

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Solution

The fourth proportional to 18,762,640,349.96, 28,148,724,282.35 and 8,685,618,198.68 is: 13,030,632,540.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,762,640,349.96 : 28,148,724,282.35 = 8,685,618,198.68 : x
  2. Step 2: Convert to fraction form
    18,762,640,349.96/28,148,724,282.35 = 8,685,618,198.68/x
  3. Step 3: Cross multiply
    18,762,640,349.96x = 28,148,724,282.35 × 8,685,618,198.68
  4. Step 4: Simplify right side
    18,762,640,349.96x = 244,489,071,896,404,787,200
  5. Step 5: Solve for x
    x = 244,489,071,896,404,787,200/18,762,640,349.96
  6. Step 6: Final answer
    x = 13,030,632,540.85

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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.