Finding the Fourth Proportional to 20,128,221.77, 27,776,212.65 and 10,960,663.37
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Solution
The fourth proportional to 20,128,221.77, 27,776,212.65 and 10,960,663.37 is: 15,125,316.08
Step by Step Solution
- Step 1: Write the proportion equation
20,128,221.77 : 27,776,212.65 = 10,960,663.37 : x - Step 2: Convert to fraction form
20,128,221.77/27,776,212.65 = 10,960,663.37/x - Step 3: Cross multiply
20,128,221.77x = 27,776,212.65 × 10,960,663.37 - Step 4: Simplify right side
20,128,221.77x = 304,445,716,411,304.56 - Step 5: Solve for x
x = 304,445,716,411,304.56/20,128,221.77 - Step 6: Final answer
x = 15,125,316.08
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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.