Finding the Fourth Proportional to 217,831,206.30, 326,746,809.45 and 190,957,350.30
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Solution
The fourth proportional to 217,831,206.30, 326,746,809.45 and 190,957,350.30 is: 286,436,025.45
Step by Step Solution
- Step 1: Write the proportion equation
217,831,206.30 : 326,746,809.45 = 190,957,350.30 : x - Step 2: Convert to fraction form
217,831,206.30/326,746,809.45 = 190,957,350.30/x - Step 3: Cross multiply
217,831,206.30x = 326,746,809.45 × 190,957,350.30 - Step 4: Simplify right side
217,831,206.30x = 62,394,704,951,551,000 - Step 5: Solve for x
x = 62,394,704,951,551,000/217,831,206.30 - Step 6: Final answer
x = 286,436,025.45
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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.