Finding the Fourth Proportional to 661,859,460.24, 991,497,638.88 and 515,608,227.06
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Solution
The fourth proportional to 661,859,460.24, 991,497,638.88 and 515,608,227.06 is: 772,406,183.53
Step by Step Solution
- Step 1: Write the proportion equation
661,859,460.24 : 991,497,638.88 = 515,608,227.06 : x - Step 2: Convert to fraction form
661,859,460.24/991,497,638.88 = 515,608,227.06/x - Step 3: Cross multiply
661,859,460.24x = 991,497,638.88 × 515,608,227.06 - Step 4: Simplify right side
661,859,460.24x = 511,224,339,717,092,928 - Step 5: Solve for x
x = 511,224,339,717,092,928/661,859,460.24 - Step 6: Final answer
x = 772,406,183.53
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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.