Home / 12,157,464.56-16,782,292.46-8,242,582.69

Finding the Fourth Proportional to 12,157,464.56, 16,782,292.46 and 8,242,582.69

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Solution

The fourth proportional to 12,157,464.56, 16,782,292.46 and 8,242,582.69 is: 11,378,148.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,157,464.56 : 16,782,292.46 = 8,242,582.69 : x
  2. Step 2: Convert to fraction form
    12,157,464.56/16,782,292.46 = 8,242,582.69/x
  3. Step 3: Cross multiply
    12,157,464.56x = 16,782,292.46 × 8,242,582.69
  4. Step 4: Simplify right side
    12,157,464.56x = 138,329,433,246,144.86
  5. Step 5: Solve for x
    x = 138,329,433,246,144.86/12,157,464.56
  6. Step 6: Final answer
    x = 11,378,148.18

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1.5x scale

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.