Finding the Fourth Proportional to 13,513,728,623.08, 20,256,403,293 and 4,546,804,809.78
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Solution
The fourth proportional to 13,513,728,623.08, 20,256,403,293 and 4,546,804,809.78 is: 6,815,432,993.39
Step by Step Solution
- Step 1: Write the proportion equation
13,513,728,623.08 : 20,256,403,293 = 4,546,804,809.78 : x - Step 2: Convert to fraction form
13,513,728,623.08/20,256,403,293 = 4,546,804,809.78/x - Step 3: Cross multiply
13,513,728,623.08x = 20,256,403,293 × 4,546,804,809.78 - Step 4: Simplify right side
13,513,728,623.08x = 92,101,911,921,455,824,896 - Step 5: Solve for x
x = 92,101,911,921,455,824,896/13,513,728,623.08 - Step 6: Final answer
x = 6,815,432,993.39
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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.