Finding the Fourth Proportional to 82,032,176.90, 123,048,265.35 and 68,694,781.70
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Solution
The fourth proportional to 82,032,176.90, 123,048,265.35 and 68,694,781.70 is: 103,042,172.55
Step by Step Solution
- Step 1: Write the proportion equation
82,032,176.90 : 123,048,265.35 = 68,694,781.70 : x - Step 2: Convert to fraction form
82,032,176.90/123,048,265.35 = 68,694,781.70/x - Step 3: Cross multiply
82,032,176.90x = 123,048,265.35 × 68,694,781.70 - Step 4: Simplify right side
82,032,176.90x = 8,452,773,726,781,924 - Step 5: Solve for x
x = 8,452,773,726,781,924/82,032,176.90 - Step 6: Final answer
x = 103,042,172.55
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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.