Home / 20,681,506.45-28,539,558.27-11,854,629.73

Finding the Fourth Proportional to 20,681,506.45, 28,539,558.27 and 11,854,629.73

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Solution

The fourth proportional to 20,681,506.45, 28,539,558.27 and 11,854,629.73 is: 16,358,861.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,681,506.45 : 28,539,558.27 = 11,854,629.73 : x
  2. Step 2: Convert to fraction form
    20,681,506.45/28,539,558.27 = 11,854,629.73/x
  3. Step 3: Cross multiply
    20,681,506.45x = 28,539,558.27 × 11,854,629.73
  4. Step 4: Simplify right side
    20,681,506.45x = 338,325,895,984,283.81
  5. Step 5: Solve for x
    x = 338,325,895,984,283.81/20,681,506.45
  6. Step 6: Final answer
    x = 16,358,861.32

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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.