Finding the Fourth Proportional to 5,112,135,768.64, 7,672,917,430.14 and 2,592,832,132.72
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Solution
The fourth proportional to 5,112,135,768.64, 7,672,917,430.14 and 2,592,832,132.72 is: 3,891,638,987.10
Step by Step Solution
- Step 1: Write the proportion equation
5,112,135,768.64 : 7,672,917,430.14 = 2,592,832,132.72 : x - Step 2: Convert to fraction form
5,112,135,768.64/7,672,917,430.14 = 2,592,832,132.72/x - Step 3: Cross multiply
5,112,135,768.64x = 7,672,917,430.14 × 2,592,832,132.72 - Step 4: Simplify right side
5,112,135,768.64x = 19,894,586,864,574,357,504 - Step 5: Solve for x
x = 19,894,586,864,574,357,504/5,112,135,768.64 - Step 6: Final answer
x = 3,891,638,987.10
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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.