Finding the Fourth Proportional to 155,701,251, 214,860,921.84 and 85,135,530.84
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Solution
The fourth proportional to 155,701,251, 214,860,921.84 and 85,135,530.84 is: 117,483,311.92
Step by Step Solution
- Step 1: Write the proportion equation
155,701,251 : 214,860,921.84 = 85,135,530.84 : x - Step 2: Convert to fraction form
155,701,251/214,860,921.84 = 85,135,530.84/x - Step 3: Cross multiply
155,701,251x = 214,860,921.84 × 85,135,530.84 - Step 4: Simplify right side
155,701,251x = 18,292,298,637,620,152 - Step 5: Solve for x
x = 18,292,298,637,620,152/155,701,251 - Step 6: Final answer
x = 117,483,311.92
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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.