Finding the Fourth Proportional to 865,366,916.80, 1,298,050,375.20 and 251,971,153.60
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Solution
The fourth proportional to 865,366,916.80, 1,298,050,375.20 and 251,971,153.60 is: 377,956,730.40
Step by Step Solution
- Step 1: Write the proportion equation
865,366,916.80 : 1,298,050,375.20 = 251,971,153.60 : x - Step 2: Convert to fraction form
865,366,916.80/1,298,050,375.20 = 251,971,153.60/x - Step 3: Cross multiply
865,366,916.80x = 1,298,050,375.20 × 251,971,153.60 - Step 4: Simplify right side
865,366,916.80x = 327,071,250,470,056,832 - Step 5: Solve for x
x = 327,071,250,470,056,832/865,366,916.80 - Step 6: Final answer
x = 377,956,730.40
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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.