Finding the Fourth Proportional to 215,898,109.20, 323,847,163.80 and 211,593,437.10
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Solution
The fourth proportional to 215,898,109.20, 323,847,163.80 and 211,593,437.10 is: 317,390,155.65
Step by Step Solution
- Step 1: Write the proportion equation
215,898,109.20 : 323,847,163.80 = 211,593,437.10 : x - Step 2: Convert to fraction form
215,898,109.20/323,847,163.80 = 211,593,437.10/x - Step 3: Cross multiply
215,898,109.20x = 323,847,163.80 × 211,593,437.10 - Step 4: Simplify right side
215,898,109.20x = 68,523,934,483,528,696 - Step 5: Solve for x
x = 68,523,934,483,528,696/215,898,109.20 - Step 6: Final answer
x = 317,390,155.65
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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.