Finding the Fourth Proportional to 19,686,603.70, 29,529,905.55 and 16,993,969.30
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Solution
The fourth proportional to 19,686,603.70, 29,529,905.55 and 16,993,969.30 is: 25,490,953.95
Step by Step Solution
- Step 1: Write the proportion equation
19,686,603.70 : 29,529,905.55 = 16,993,969.30 : x - Step 2: Convert to fraction form
19,686,603.70/29,529,905.55 = 16,993,969.30/x - Step 3: Cross multiply
19,686,603.70x = 29,529,905.55 × 16,993,969.30 - Step 4: Simplify right side
19,686,603.70x = 501,830,308,348,599.62 - Step 5: Solve for x
x = 501,830,308,348,599.62/19,686,603.70 - Step 6: Final answer
x = 25,490,953.95
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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.