Finding the Fourth Proportional to 139,245,182.08, 192,163,537.20 and 83,499,678.40
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Solution
The fourth proportional to 139,245,182.08, 192,163,537.20 and 83,499,678.40 is: 115,232,665.98
Step by Step Solution
- Step 1: Write the proportion equation
139,245,182.08 : 192,163,537.20 = 83,499,678.40 : x - Step 2: Convert to fraction form
139,245,182.08/192,163,537.20 = 83,499,678.40/x - Step 3: Cross multiply
139,245,182.08x = 192,163,537.20 × 83,499,678.40 - Step 4: Simplify right side
139,245,182.08x = 16,045,593,556,406,436 - Step 5: Solve for x
x = 16,045,593,556,406,436/139,245,182.08 - Step 6: Final answer
x = 115,232,665.98
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.