Finding the Fourth Proportional to 163,775,672.70, 245,663,509.05 and 77,682,230.70
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Solution
The fourth proportional to 163,775,672.70, 245,663,509.05 and 77,682,230.70 is: 116,523,346.05
Step by Step Solution
- Step 1: Write the proportion equation
163,775,672.70 : 245,663,509.05 = 77,682,230.70 : x - Step 2: Convert to fraction form
163,775,672.70/245,663,509.05 = 77,682,230.70/x - Step 3: Cross multiply
163,775,672.70x = 245,663,509.05 × 77,682,230.70 - Step 4: Simplify right side
163,775,672.70x = 19,083,689,384,593,640 - Step 5: Solve for x
x = 19,083,689,384,593,640/163,775,672.70 - Step 6: Final answer
x = 116,523,346.05
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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.