Finding the Fourth Proportional to 85,235,235.76, 117,656,612.49 and 55,868,460.85
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Solution
The fourth proportional to 85,235,235.76, 117,656,612.49 and 55,868,460.85 is: 77,119,442.33
Step by Step Solution
- Step 1: Write the proportion equation
85,235,235.76 : 117,656,612.49 = 55,868,460.85 : x - Step 2: Convert to fraction form
85,235,235.76/117,656,612.49 = 55,868,460.85/x - Step 3: Cross multiply
85,235,235.76x = 117,656,612.49 × 55,868,460.85 - Step 4: Simplify right side
85,235,235.76x = 6,573,293,848,641,186 - Step 5: Solve for x
x = 6,573,293,848,641,186/85,235,235.76 - Step 6: Final answer
x = 77,119,442.33
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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.