Finding the Fourth Proportional to 886,235,137.96, 1,328,164,442.42 and 689,735,828.16
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Solution
The fourth proportional to 886,235,137.96, 1,328,164,442.42 and 689,735,828.16 is: 1,033,678,944.09
Step by Step Solution
- Step 1: Write the proportion equation
886,235,137.96 : 1,328,164,442.42 = 689,735,828.16 : x - Step 2: Convert to fraction form
886,235,137.96/1,328,164,442.42 = 689,735,828.16/x - Step 3: Cross multiply
886,235,137.96x = 1,328,164,442.42 × 689,735,828.16 - Step 4: Simplify right side
886,235,137.96x = 916,082,601,625,223,296 - Step 5: Solve for x
x = 916,082,601,625,223,296/886,235,137.96 - Step 6: Final answer
x = 1,033,678,944.09
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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.