Finding the Fourth Proportional to 1,491,330,845.16, 2,058,918,319.62 and 1,325,860,393.68
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Solution
The fourth proportional to 1,491,330,845.16, 2,058,918,319.62 and 1,325,860,393.68 is: 1,830,471,261.74
Step by Step Solution
- Step 1: Write the proportion equation
1,491,330,845.16 : 2,058,918,319.62 = 1,325,860,393.68 : x - Step 2: Convert to fraction form
1,491,330,845.16/2,058,918,319.62 = 1,325,860,393.68/x - Step 3: Cross multiply
1,491,330,845.16x = 2,058,918,319.62 × 1,325,860,393.68 - Step 4: Simplify right side
1,491,330,845.16x = 2,729,838,253,806,337,024 - Step 5: Solve for x
x = 2,729,838,253,806,337,024/1,491,330,845.16 - Step 6: Final answer
x = 1,830,471,261.74
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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.