Finding the Fourth Proportional to 5,423,998.90, 8,135,998.35 and 3,298,251.70
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Solution
The fourth proportional to 5,423,998.90, 8,135,998.35 and 3,298,251.70 is: 4,947,377.55
Step by Step Solution
- Step 1: Write the proportion equation
5,423,998.90 : 8,135,998.35 = 3,298,251.70 : x - Step 2: Convert to fraction form
5,423,998.90/8,135,998.35 = 3,298,251.70/x - Step 3: Cross multiply
5,423,998.90x = 8,135,998.35 × 3,298,251.70 - Step 4: Simplify right side
5,423,998.90x = 26,834,570,389,084.70 - Step 5: Solve for x
x = 26,834,570,389,084.70/5,423,998.90 - Step 6: Final answer
x = 4,947,377.55
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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.