Finding the Fourth Proportional to 342,853,382.67, 473,129,620.45 and 201,733,743.49
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Solution
The fourth proportional to 342,853,382.67, 473,129,620.45 and 201,733,743.49 is: 278,387,830.82
Step by Step Solution
- Step 1: Write the proportion equation
342,853,382.67 : 473,129,620.45 = 201,733,743.49 : x - Step 2: Convert to fraction form
342,853,382.67/473,129,620.45 = 201,733,743.49/x - Step 3: Cross multiply
342,853,382.67x = 473,129,620.45 × 201,733,743.49 - Step 4: Simplify right side
342,853,382.67x = 95,446,209,489,381,360 - Step 5: Solve for x
x = 95,446,209,489,381,360/342,853,382.67 - Step 6: Final answer
x = 278,387,830.82
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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.