Finding the Fourth Proportional to 19,615,486.31, 27,068,948.69 and 11,355,898.08
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Solution
The fourth proportional to 19,615,486.31, 27,068,948.69 and 11,355,898.08 is: 15,670,894.80
Step by Step Solution
- Step 1: Write the proportion equation
19,615,486.31 : 27,068,948.69 = 11,355,898.08 : x - Step 2: Convert to fraction form
19,615,486.31/27,068,948.69 = 11,355,898.08/x - Step 3: Cross multiply
19,615,486.31x = 27,068,948.69 × 11,355,898.08 - Step 4: Simplify right side
19,615,486.31x = 307,392,222,399,610 - Step 5: Solve for x
x = 307,392,222,399,610/19,615,486.31 - Step 6: Final answer
x = 15,670,894.80
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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.