Finding the Fourth Proportional to 27,800,722.48, 38,365,309.12 and 15,881,114.68
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Solution
The fourth proportional to 27,800,722.48, 38,365,309.12 and 15,881,114.68 is: 21,916,116.54
Step by Step Solution
- Step 1: Write the proportion equation
27,800,722.48 : 38,365,309.12 = 15,881,114.68 : x - Step 2: Convert to fraction form
27,800,722.48/38,365,309.12 = 15,881,114.68/x - Step 3: Cross multiply
27,800,722.48x = 38,365,309.12 × 15,881,114.68 - Step 4: Simplify right side
27,800,722.48x = 609,283,873,868,369.88 - Step 5: Solve for x
x = 609,283,873,868,369.88/27,800,722.48 - Step 6: Final answer
x = 21,916,116.54
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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.