Home / 12,470,469.60-18,711,925.20-7,083,256.80

Finding the Fourth Proportional to 12,470,469.60, 18,711,925.20 and 7,083,256.80

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Solution

The fourth proportional to 12,470,469.60, 18,711,925.20 and 7,083,256.80 is: 10,628,418.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,470,469.60 : 18,711,925.20 = 7,083,256.80 : x
  2. Step 2: Convert to fraction form
    12,470,469.60/18,711,925.20 = 7,083,256.80/x
  3. Step 3: Cross multiply
    12,470,469.60x = 18,711,925.20 × 7,083,256.80
  4. Step 4: Simplify right side
    12,470,469.60x = 132,541,371,413,991.34
  5. Step 5: Solve for x
    x = 132,541,371,413,991.34/12,470,469.60
  6. Step 6: Final answer
    x = 10,628,418.63

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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.