Finding the Fourth Proportional to 38,552,867.07, 53,202,692.81 and 20,911,698.63
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Solution
The fourth proportional to 38,552,867.07, 53,202,692.81 and 20,911,698.63 is: 28,858,001.05
Step by Step Solution
- Step 1: Write the proportion equation
38,552,867.07 : 53,202,692.81 = 20,911,698.63 : x - Step 2: Convert to fraction form
38,552,867.07/53,202,692.81 = 20,911,698.63/x - Step 3: Cross multiply
38,552,867.07x = 53,202,692.81 × 20,911,698.63 - Step 4: Simplify right side
38,552,867.07x = 1,112,558,678,347,187.88 - Step 5: Solve for x
x = 1,112,558,678,347,187.88/38,552,867.07 - Step 6: Final answer
x = 28,858,001.05
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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.