Finding the Fourth Proportional to 13,390,097.96, 18,231,129.48 and 13,347,582.68
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Solution
The fourth proportional to 13,390,097.96, 18,231,129.48 and 13,347,582.68 is: 18,173,243.30
Step by Step Solution
- Step 1: Write the proportion equation
13,390,097.96 : 18,231,129.48 = 13,347,582.68 : x - Step 2: Convert to fraction form
13,390,097.96/18,231,129.48 = 13,347,582.68/x - Step 3: Cross multiply
13,390,097.96x = 18,231,129.48 × 13,347,582.68 - Step 4: Simplify right side
13,390,097.96x = 243,341,508,084,085.41 - Step 5: Solve for x
x = 243,341,508,084,085.41/13,390,097.96 - Step 6: Final answer
x = 18,173,243.30
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Why These Related Problems?
These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.