Finding the Fourth Proportional to 248,163,903.80, 372,245,855.70 and 66,411,081.80
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Solution
The fourth proportional to 248,163,903.80, 372,245,855.70 and 66,411,081.80 is: 99,616,622.70
Step by Step Solution
- Step 1: Write the proportion equation
248,163,903.80 : 372,245,855.70 = 66,411,081.80 : x - Step 2: Convert to fraction form
248,163,903.80/372,245,855.70 = 66,411,081.80/x - Step 3: Cross multiply
248,163,903.80x = 372,245,855.70 × 66,411,081.80 - Step 4: Simplify right side
248,163,903.80x = 24,721,249,972,603,696 - Step 5: Solve for x
x = 24,721,249,972,603,696/248,163,903.80 - Step 6: Final answer
x = 99,616,622.70
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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.