Home / 13,760,120.40-20,640,180.60-7,382,828.40

Finding the Fourth Proportional to 13,760,120.40, 20,640,180.60 and 7,382,828.40

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Solution

The fourth proportional to 13,760,120.40, 20,640,180.60 and 7,382,828.40 is: 11,074,242.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,760,120.40 : 20,640,180.60 = 7,382,828.40 : x
  2. Step 2: Convert to fraction form
    13,760,120.40/20,640,180.60 = 7,382,828.40/x
  3. Step 3: Cross multiply
    13,760,120.40x = 20,640,180.60 × 7,382,828.40
  4. Step 4: Simplify right side
    13,760,120.40x = 152,382,911,514,809.06
  5. Step 5: Solve for x
    x = 152,382,911,514,809.06/13,760,120.40
  6. Step 6: Final answer
    x = 11,074,242.60

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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.