Finding the Fourth Proportional to 261,793,876.98, 361,276,644.12 and 144,316,629.66
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Solution
The fourth proportional to 261,793,876.98, 361,276,644.12 and 144,316,629.66 is: 199,157,551.95
Step by Step Solution
- Step 1: Write the proportion equation
261,793,876.98 : 361,276,644.12 = 144,316,629.66 : x - Step 2: Convert to fraction form
261,793,876.98/361,276,644.12 = 144,316,629.66/x - Step 3: Cross multiply
261,793,876.98x = 361,276,644.12 × 144,316,629.66 - Step 4: Simplify right side
261,793,876.98x = 52,138,227,654,273,656 - Step 5: Solve for x
x = 52,138,227,654,273,656/261,793,876.98 - Step 6: Final answer
x = 199,157,551.95
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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.