Finding the Fourth Proportional to 15,004,447.08, 20,706,236.36 and 8,128,929.14
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Solution
The fourth proportional to 15,004,447.08, 20,706,236.36 and 8,128,929.14 is: 11,217,976.06
Step by Step Solution
- Step 1: Write the proportion equation
15,004,447.08 : 20,706,236.36 = 8,128,929.14 : x - Step 2: Convert to fraction form
15,004,447.08/20,706,236.36 = 8,128,929.14/x - Step 3: Cross multiply
15,004,447.08x = 20,706,236.36 × 8,128,929.14 - Step 4: Simplify right side
15,004,447.08x = 168,319,528,136,212.78 - Step 5: Solve for x
x = 168,319,528,136,212.78/15,004,447.08 - Step 6: Final answer
x = 11,217,976.06
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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.