Finding the Fourth Proportional to 399,689,923.56, 551,403,197.37 and 267,573,485.94
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Solution
The fourth proportional to 399,689,923.56, 551,403,197.37 and 267,573,485.94 is: 369,138,341.95
Step by Step Solution
- Step 1: Write the proportion equation
399,689,923.56 : 551,403,197.37 = 267,573,485.94 : x - Step 2: Convert to fraction form
399,689,923.56/551,403,197.37 = 267,573,485.94/x - Step 3: Cross multiply
399,689,923.56x = 551,403,197.37 × 267,573,485.94 - Step 4: Simplify right side
399,689,923.56x = 147,540,875,678,752,736 - Step 5: Solve for x
x = 147,540,875,678,752,736/399,689,923.56 - Step 6: Final answer
x = 369,138,341.95
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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.