Home / 19,009,828.80-28,514,743.20-13,907,995.20

Finding the Fourth Proportional to 19,009,828.80, 28,514,743.20 and 13,907,995.20

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Solution

The fourth proportional to 19,009,828.80, 28,514,743.20 and 13,907,995.20 is: 20,861,992.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,009,828.80 : 28,514,743.20 = 13,907,995.20 : x
  2. Step 2: Convert to fraction form
    19,009,828.80/28,514,743.20 = 13,907,995.20/x
  3. Step 3: Cross multiply
    19,009,828.80x = 28,514,743.20 × 13,907,995.20
  4. Step 4: Simplify right side
    19,009,828.80x = 396,582,911,554,832.62
  5. Step 5: Solve for x
    x = 396,582,911,554,832.62/19,009,828.80
  6. Step 6: Final answer
    x = 20,861,992.80

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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.