Finding the Fourth Proportional to 92,301,891.21, 127,415,830.41 and 57,511,770.75
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Solution
The fourth proportional to 92,301,891.21, 127,415,830.41 and 57,511,770.75 is: 79,390,681.30
Step by Step Solution
- Step 1: Write the proportion equation
92,301,891.21 : 127,415,830.41 = 57,511,770.75 : x - Step 2: Convert to fraction form
92,301,891.21/127,415,830.41 = 57,511,770.75/x - Step 3: Cross multiply
92,301,891.21x = 127,415,830.41 × 57,511,770.75 - Step 4: Simplify right side
92,301,891.21x = 7,327,910,028,460,798 - Step 5: Solve for x
x = 7,327,910,028,460,798/92,301,891.21 - Step 6: Final answer
x = 79,390,681.30
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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.