Finding the Fourth Proportional to 1,211,180,448.53, 1,671,430,506.68 and 654,263,495.60
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Solution
The fourth proportional to 1,211,180,448.53, 1,671,430,506.68 and 654,263,495.60 is: 902,884,427.56
Step by Step Solution
- Step 1: Write the proportion equation
1,211,180,448.53 : 1,671,430,506.68 = 654,263,495.60 : x - Step 2: Convert to fraction form
1,211,180,448.53/1,671,430,506.68 = 654,263,495.60/x - Step 3: Cross multiply
1,211,180,448.53x = 1,671,430,506.68 × 654,263,495.60 - Step 4: Simplify right side
1,211,180,448.53x = 1,093,555,965,941,307,520 - Step 5: Solve for x
x = 1,093,555,965,941,307,520/1,211,180,448.53 - Step 6: Final answer
x = 902,884,427.56
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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.