Finding the Fourth Proportional to 15,305,124.02, 21,121,071.26 and 8,429,606.08
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Solution
The fourth proportional to 15,305,124.02, 21,121,071.26 and 8,429,606.08 is: 11,632,856.45
Step by Step Solution
- Step 1: Write the proportion equation
15,305,124.02 : 21,121,071.26 = 8,429,606.08 : x - Step 2: Convert to fraction form
15,305,124.02/21,121,071.26 = 8,429,606.08/x - Step 3: Cross multiply
15,305,124.02x = 21,121,071.26 × 8,429,606.08 - Step 4: Simplify right side
15,305,124.02x = 178,042,310,614,458.56 - Step 5: Solve for x
x = 178,042,310,614,458.56/15,305,124.02 - Step 6: Final answer
x = 11,632,856.45
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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.