Finding the Fourth Proportional to 19,972,784.97, 29,932,692.06 and 10,257,005.07
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Solution
The fourth proportional to 19,972,784.97, 29,932,692.06 and 10,257,005.07 is: 15,371,906.06
Step by Step Solution
- Step 1: Write the proportion equation
19,972,784.97 : 29,932,692.06 = 10,257,005.07 : x - Step 2: Convert to fraction form
19,972,784.97/29,932,692.06 = 10,257,005.07/x - Step 3: Cross multiply
19,972,784.97x = 29,932,692.06 × 10,257,005.07 - Step 4: Simplify right side
19,972,784.97x = 307,019,774,218,168.75 - Step 5: Solve for x
x = 307,019,774,218,168.75/19,972,784.97 - Step 6: Final answer
x = 15,371,906.06
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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.