Finding the Fourth Proportional to 1,211,180,447.03, 1,671,430,504.60 and 654,263,494.09
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Solution
The fourth proportional to 1,211,180,447.03, 1,671,430,504.60 and 654,263,494.09 is: 902,884,425.48
Step by Step Solution
- Step 1: Write the proportion equation
1,211,180,447.03 : 1,671,430,504.60 = 654,263,494.09 : x - Step 2: Convert to fraction form
1,211,180,447.03/1,671,430,504.60 = 654,263,494.09/x - Step 3: Cross multiply
1,211,180,447.03x = 1,671,430,504.60 × 654,263,494.09 - Step 4: Simplify right side
1,211,180,447.03x = 1,093,555,962,064,879,744 - Step 5: Solve for x
x = 1,093,555,962,064,879,744/1,211,180,447.03 - Step 6: Final answer
x = 902,884,425.48
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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.