Finding the Fourth Proportional to 155,385,665.54, 214,432,186.11 and 85,771,027.97
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Solution
The fourth proportional to 155,385,665.54, 214,432,186.11 and 85,771,027.97 is: 118,364,000.75
Step by Step Solution
- Step 1: Write the proportion equation
155,385,665.54 : 214,432,186.11 = 85,771,027.97 : x - Step 2: Convert to fraction form
155,385,665.54/214,432,186.11 = 85,771,027.97/x - Step 3: Cross multiply
155,385,665.54x = 214,432,186.11 × 85,771,027.97 - Step 4: Simplify right side
155,385,665.54x = 18,392,069,032,509,056 - Step 5: Solve for x
x = 18,392,069,032,509,056/155,385,665.54 - Step 6: Final answer
x = 118,364,000.75
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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.