Finding the Fourth Proportional to 212,113,951.08, 292,673,358.72 and 123,990,906.68
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Solution
The fourth proportional to 212,113,951.08, 292,673,358.72 and 123,990,906.68 is: 171,081,793.18
Step by Step Solution
- Step 1: Write the proportion equation
212,113,951.08 : 292,673,358.72 = 123,990,906.68 : x - Step 2: Convert to fraction form
212,113,951.08/292,673,358.72 = 123,990,906.68/x - Step 3: Cross multiply
212,113,951.08x = 292,673,358.72 × 123,990,906.68 - Step 4: Simplify right side
212,113,951.08x = 36,288,835,108,773,688 - Step 5: Solve for x
x = 36,288,835,108,773,688/212,113,951.08 - Step 6: Final answer
x = 171,081,793.18
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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.