Home / 20,681,506.58-28,539,558.44-11,854,629.86

Finding the Fourth Proportional to 20,681,506.58, 28,539,558.44 and 11,854,629.86

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Solution

The fourth proportional to 20,681,506.58, 28,539,558.44 and 11,854,629.86 is: 16,358,861.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,681,506.58 : 28,539,558.44 = 11,854,629.86 : x
  2. Step 2: Convert to fraction form
    20,681,506.58/28,539,558.44 = 11,854,629.86/x
  3. Step 3: Cross multiply
    20,681,506.58x = 28,539,558.44 × 11,854,629.86
  4. Step 4: Simplify right side
    20,681,506.58x = 338,325,901,596,652.19
  5. Step 5: Solve for x
    x = 338,325,901,596,652.19/20,681,506.58
  6. Step 6: Final answer
    x = 16,358,861.50

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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.