Home / 15,514,979.38-21,410,670.47-8,992,392.21

Finding the Fourth Proportional to 15,514,979.38, 21,410,670.47 and 8,992,392.21

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Solution

The fourth proportional to 15,514,979.38, 21,410,670.47 and 8,992,392.21 is: 12,409,500.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,514,979.38 : 21,410,670.47 = 8,992,392.21 : x
  2. Step 2: Convert to fraction form
    15,514,979.38/21,410,670.47 = 8,992,392.21/x
  3. Step 3: Cross multiply
    15,514,979.38x = 21,410,670.47 × 8,992,392.21
  4. Step 4: Simplify right side
    15,514,979.38x = 192,533,146,300,343.09
  5. Step 5: Solve for x
    x = 192,533,146,300,343.09/15,514,979.38
  6. Step 6: Final answer
    x = 12,409,500.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.