Finding the Fourth Proportional to 19,415,427.80, 29,123,141.70 and 5,232,003.80
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Solution
The fourth proportional to 19,415,427.80, 29,123,141.70 and 5,232,003.80 is: 7,848,005.70
Step by Step Solution
- Step 1: Write the proportion equation
19,415,427.80 : 29,123,141.70 = 5,232,003.80 : x - Step 2: Convert to fraction form
19,415,427.80/29,123,141.70 = 5,232,003.80/x - Step 3: Cross multiply
19,415,427.80x = 29,123,141.70 × 5,232,003.80 - Step 4: Simplify right side
19,415,427.80x = 152,372,388,042,338.44 - Step 5: Solve for x
x = 152,372,388,042,338.44/19,415,427.80 - Step 6: Final answer
x = 7,848,005.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.