Finding the Fourth Proportional to 73,758,946.60, 110,638,419.90 and 39,746,722.60
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Solution
The fourth proportional to 73,758,946.60, 110,638,419.90 and 39,746,722.60 is: 59,620,083.90
Step by Step Solution
- Step 1: Write the proportion equation
73,758,946.60 : 110,638,419.90 = 39,746,722.60 : x - Step 2: Convert to fraction form
73,758,946.60/110,638,419.90 = 39,746,722.60/x - Step 3: Cross multiply
73,758,946.60x = 110,638,419.90 × 39,746,722.60 - Step 4: Simplify right side
73,758,946.60x = 4,397,514,584,667,620 - Step 5: Solve for x
x = 4,397,514,584,667,620/73,758,946.60 - Step 6: Final answer
x = 59,620,083.90
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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.