Finding the Fourth Proportional to 13,127,764.17, 18,121,279.50 and 9,873,975.12
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Solution
The fourth proportional to 13,127,764.17, 18,121,279.50 and 9,873,975.12 is: 13,629,820.02
Step by Step Solution
- Step 1: Write the proportion equation
13,127,764.17 : 18,121,279.50 = 9,873,975.12 : x - Step 2: Convert to fraction form
13,127,764.17/18,121,279.50 = 9,873,975.12/x - Step 3: Cross multiply
13,127,764.17x = 18,121,279.50 × 9,873,975.12 - Step 4: Simplify right side
13,127,764.17x = 178,929,062,925,566.03 - Step 5: Solve for x
x = 178,929,062,925,566.03/13,127,764.17 - Step 6: Final answer
x = 13,629,820.02
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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.