Finding the Fourth Proportional to 272,256,202.82, 408,402,913.26 and 78,152,691.98
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Solution
The fourth proportional to 272,256,202.82, 408,402,913.26 and 78,152,691.98 is: 117,234,379.80
Step by Step Solution
- Step 1: Write the proportion equation
272,256,202.82 : 408,402,913.26 = 78,152,691.98 : x - Step 2: Convert to fraction form
272,256,202.82/408,402,913.26 = 78,152,691.98/x - Step 3: Cross multiply
272,256,202.82x = 408,402,913.26 × 78,152,691.98 - Step 4: Simplify right side
272,256,202.82x = 31,917,787,083,743,440 - Step 5: Solve for x
x = 31,917,787,083,743,440/272,256,202.82 - Step 6: Final answer
x = 117,234,379.80
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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.