Home / 12,948,669.60-19,423,004.40-11,856,919.20

Finding the Fourth Proportional to 12,948,669.60, 19,423,004.40 and 11,856,919.20

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Solution

The fourth proportional to 12,948,669.60, 19,423,004.40 and 11,856,919.20 is: 17,785,378.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,669.60 : 19,423,004.40 = 11,856,919.20 : x
  2. Step 2: Convert to fraction form
    12,948,669.60/19,423,004.40 = 11,856,919.20/x
  3. Step 3: Cross multiply
    12,948,669.60x = 19,423,004.40 × 11,856,919.20
  4. Step 4: Simplify right side
    12,948,669.60x = 230,296,993,792,044.44
  5. Step 5: Solve for x
    x = 230,296,993,792,044.44/12,948,669.60
  6. Step 6: Final answer
    x = 17,785,378.80

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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.