Finding the Fourth Proportional to 1,638,793,523.70, 2,458,190,285.55 and 1,449,387,951.30
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Solution
The fourth proportional to 1,638,793,523.70, 2,458,190,285.55 and 1,449,387,951.30 is: 2,174,081,926.95
Step by Step Solution
- Step 1: Write the proportion equation
1,638,793,523.70 : 2,458,190,285.55 = 1,449,387,951.30 : x - Step 2: Convert to fraction form
1,638,793,523.70/2,458,190,285.55 = 1,449,387,951.30/x - Step 3: Cross multiply
1,638,793,523.70x = 2,458,190,285.55 × 1,449,387,951.30 - Step 4: Simplify right side
1,638,793,523.70x = 3,562,871,381,878,876,672 - Step 5: Solve for x
x = 3,562,871,381,878,876,672/1,638,793,523.70 - Step 6: Final answer
x = 2,174,081,926.95
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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.