Finding the Fourth Proportional to 27,919,995,332.90, 38,529,541,091.09 and 15,232,739,593.19
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Solution
The fourth proportional to 27,919,995,332.90, 38,529,541,091.09 and 15,232,739,593.19 is: 21,021,152,012.66
Step by Step Solution
- Step 1: Write the proportion equation
27,919,995,332.90 : 38,529,541,091.09 = 15,232,739,593.19 : x - Step 2: Convert to fraction form
27,919,995,332.90/38,529,541,091.09 = 15,232,739,593.19/x - Step 3: Cross multiply
27,919,995,332.90x = 38,529,541,091.09 × 15,232,739,593.19 - Step 4: Simplify right side
27,919,995,332.90x = 586,910,466,085,611,503,616 - Step 5: Solve for x
x = 586,910,466,085,611,503,616/27,919,995,332.90 - Step 6: Final answer
x = 21,021,152,012.66
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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.