Finding the Fourth Proportional to 85,423,543.52, 117,894,847.74 and 48,255,391.04
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Solution
The fourth proportional to 85,423,543.52, 117,894,847.74 and 48,255,391.04 is: 66,598,290.65
Step by Step Solution
- Step 1: Write the proportion equation
85,423,543.52 : 117,894,847.74 = 48,255,391.04 : x - Step 2: Convert to fraction form
85,423,543.52/117,894,847.74 = 48,255,391.04/x - Step 3: Cross multiply
85,423,543.52x = 117,894,847.74 × 48,255,391.04 - Step 4: Simplify right side
85,423,543.52x = 5,689,061,979,294,960 - Step 5: Solve for x
x = 5,689,061,979,294,960/85,423,543.52 - Step 6: Final answer
x = 66,598,290.65
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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.