Finding the Fourth Proportional to 156,149,893.08, 215,487,413.46 and 86,536,458.36
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Solution
The fourth proportional to 156,149,893.08, 215,487,413.46 and 86,536,458.36 is: 119,420,623.44
Step by Step Solution
- Step 1: Write the proportion equation
156,149,893.08 : 215,487,413.46 = 86,536,458.36 : x - Step 2: Convert to fraction form
156,149,893.08/215,487,413.46 = 86,536,458.36/x - Step 3: Cross multiply
156,149,893.08x = 215,487,413.46 × 86,536,458.36 - Step 4: Simplify right side
156,149,893.08x = 18,647,517,581,985,396 - Step 5: Solve for x
x = 18,647,517,581,985,396/156,149,893.08 - Step 6: Final answer
x = 119,420,623.44
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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.