Home / 12,616,458.40-18,929,353.20-12,149,898.40

Finding the Fourth Proportional to 12,616,458.40, 18,929,353.20 and 12,149,898.40

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Solution

The fourth proportional to 12,616,458.40, 18,929,353.20 and 12,149,898.40 is: 18,229,340.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,616,458.40 : 18,929,353.20 = 12,149,898.40 : x
  2. Step 2: Convert to fraction form
    12,616,458.40/18,929,353.20 = 12,149,898.40/x
  3. Step 3: Cross multiply
    12,616,458.40x = 18,929,353.20 × 12,149,898.40
  4. Step 4: Simplify right side
    12,616,458.40x = 229,989,718,157,714.88
  5. Step 5: Solve for x
    x = 229,989,718,157,714.88/12,616,458.40
  6. Step 6: Final answer
    x = 18,229,340.66

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1.5x scale

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.