Finding the Fourth Proportional to 497,918,347.67, 687,187,573.11 and 283,389,151.97
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Solution
The fourth proportional to 497,918,347.67, 687,187,573.11 and 283,389,151.97 is: 391,111,322.77
Step by Step Solution
- Step 1: Write the proportion equation
497,918,347.67 : 687,187,573.11 = 283,389,151.97 : x - Step 2: Convert to fraction form
497,918,347.67/687,187,573.11 = 283,389,151.97/x - Step 3: Cross multiply
497,918,347.67x = 687,187,573.11 × 283,389,151.97 - Step 4: Simplify right side
497,918,347.67x = 194,741,503,584,529,312 - Step 5: Solve for x
x = 194,741,503,584,529,312/497,918,347.67 - Step 6: Final answer
x = 391,111,322.77
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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.