Finding the Fourth Proportional to 19,963,272.30, 29,944,908.45 and 7,179,163.80
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Solution
The fourth proportional to 19,963,272.30, 29,944,908.45 and 7,179,163.80 is: 10,768,745.70
Step by Step Solution
- Step 1: Write the proportion equation
19,963,272.30 : 29,944,908.45 = 7,179,163.80 : x - Step 2: Convert to fraction form
19,963,272.30/29,944,908.45 = 7,179,163.80/x - Step 3: Cross multiply
19,963,272.30x = 29,944,908.45 × 7,179,163.80 - Step 4: Simplify right side
19,963,272.30x = 214,979,402,738,554.09 - Step 5: Solve for x
x = 214,979,402,738,554.09/19,963,272.30 - Step 6: Final answer
x = 10,768,745.70
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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.