Home / 12,190,712.40-18,285,485.40-4,102,894.80

Finding the Fourth Proportional to 12,190,712.40, 18,285,485.40 and 4,102,894.80

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Solution

The fourth proportional to 12,190,712.40, 18,285,485.40 and 4,102,894.80 is: 6,154,145.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,190,712.40 : 18,285,485.40 = 4,102,894.80 : x
  2. Step 2: Convert to fraction form
    12,190,712.40/18,285,485.40 = 4,102,894.80/x
  3. Step 3: Cross multiply
    12,190,712.40x = 18,285,485.40 × 4,102,894.80
  4. Step 4: Simplify right side
    12,190,712.40x = 75,023,422,963,135.91
  5. Step 5: Solve for x
    x = 75,023,422,963,135.91/12,190,712.40
  6. Step 6: Final answer
    x = 6,154,145.92

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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.