Finding the Fourth Proportional to 28,659,834,938.73, 39,550,691,676.59 and 15,799,192,368.99
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Solution
The fourth proportional to 28,659,834,938.73, 39,550,691,676.59 and 15,799,192,368.99 is: 21,802,951,324.07
Step by Step Solution
- Step 1: Write the proportion equation
28,659,834,938.73 : 39,550,691,676.59 = 15,799,192,368.99 : x - Step 2: Convert to fraction form
28,659,834,938.73/39,550,691,676.59 = 15,799,192,368.99/x - Step 3: Cross multiply
28,659,834,938.73x = 39,550,691,676.59 × 15,799,192,368.99 - Step 4: Simplify right side
28,659,834,938.73x = 624,868,986,124,977,963,008 - Step 5: Solve for x
x = 624,868,986,124,977,963,008/28,659,834,938.73 - Step 6: Final answer
x = 21,802,951,324.07
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1.5x scale
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.