Finding the Fourth Proportional to 257,782,329.98, 355,769,907.12 and 144,770,394.40
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Solution
The fourth proportional to 257,782,329.98, 355,769,907.12 and 144,770,394.40 is: 199,800,156.10
Step by Step Solution
- Step 1: Write the proportion equation
257,782,329.98 : 355,769,907.12 = 144,770,394.40 : x - Step 2: Convert to fraction form
257,782,329.98/355,769,907.12 = 144,770,394.40/x - Step 3: Cross multiply
257,782,329.98x = 355,769,907.12 × 144,770,394.40 - Step 4: Simplify right side
257,782,329.98x = 51,504,949,768,524,344 - Step 5: Solve for x
x = 51,504,949,768,524,344/257,782,329.98 - Step 6: Final answer
x = 199,800,156.10
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.