Finding the Fourth Proportional to 155,239,821,000.67, 232,859,731,501.01 and 128,740,259,553.08
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Solution
The fourth proportional to 155,239,821,000.67, 232,859,731,501.01 and 128,740,259,553.08 is: 193,110,389,329.62
Step by Step Solution
- Step 1: Write the proportion equation
155,239,821,000.67 : 232,859,731,501.01 = 128,740,259,553.08 : x - Step 2: Convert to fraction form
155,239,821,000.67/232,859,731,501.01 = 128,740,259,553.08/x - Step 3: Cross multiply
155,239,821,000.67x = 232,859,731,501.01 × 128,740,259,553.08 - Step 4: Simplify right side
155,239,821,000.67x = 29,978,422,272,900,546,428,928 - Step 5: Solve for x
x = 29,978,422,272,900,546,428,928/155,239,821,000.67 - Step 6: Final answer
x = 193,110,389,329.62
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1.5x scale
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.