Finding the Fourth Proportional to 804,843,985.10, 1,207,264,470.80 and 252,188,721.80
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Solution
The fourth proportional to 804,843,985.10, 1,207,264,470.80 and 252,188,721.80 is: 378,282,610.55
Step by Step Solution
- Step 1: Write the proportion equation
804,843,985.10 : 1,207,264,470.80 = 252,188,721.80 : x - Step 2: Convert to fraction form
804,843,985.10/1,207,264,470.80 = 252,188,721.80/x - Step 3: Cross multiply
804,843,985.10x = 1,207,264,470.80 × 252,188,721.80 - Step 4: Simplify right side
804,843,985.10x = 304,458,483,765,605,440 - Step 5: Solve for x
x = 304,458,483,765,605,440/804,843,985.10 - Step 6: Final answer
x = 378,282,610.55
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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.