Home / 28,920,477.60-39,910,255.74-16,530,835.86

Finding the Fourth Proportional to 28,920,477.60, 39,910,255.74 and 16,530,835.86

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Solution

The fourth proportional to 28,920,477.60, 39,910,255.74 and 16,530,835.86 is: 22,812,551.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,920,477.60 : 39,910,255.74 = 16,530,835.86 : x
  2. Step 2: Convert to fraction form
    28,920,477.60/39,910,255.74 = 16,530,835.86/x
  3. Step 3: Cross multiply
    28,920,477.60x = 39,910,255.74 × 16,530,835.86
  4. Step 4: Simplify right side
    28,920,477.60x = 659,749,886,768,562.88
  5. Step 5: Solve for x
    x = 659,749,886,768,562.88/28,920,477.60
  6. Step 6: Final answer
    x = 22,812,551.57

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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.