Finding the Fourth Proportional to 206,917,351.96, 310,400,041.20 and 68,755,289.08
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Solution
The fourth proportional to 206,917,351.96, 310,400,041.20 and 68,755,289.08 is: 103,140,912.84
Step by Step Solution
- Step 1: Write the proportion equation
206,917,351.96 : 310,400,041.20 = 68,755,289.08 : x - Step 2: Convert to fraction form
206,917,351.96/310,400,041.20 = 68,755,289.08/x - Step 3: Cross multiply
206,917,351.96x = 310,400,041.20 × 68,755,289.08 - Step 4: Simplify right side
206,917,351.96x = 21,341,644,563,149,908 - Step 5: Solve for x
x = 21,341,644,563,149,908/206,917,351.96 - Step 6: Final answer
x = 103,140,912.84
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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.