Finding the Fourth Proportional to 1,622,295,181.16, 2,238,767,946.42 and 879,739,047.08
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Solution
The fourth proportional to 1,622,295,181.16, 2,238,767,946.42 and 879,739,047.08 is: 1,214,040,208.40
Step by Step Solution
- Step 1: Write the proportion equation
1,622,295,181.16 : 2,238,767,946.42 = 879,739,047.08 : x - Step 2: Convert to fraction form
1,622,295,181.16/2,238,767,946.42 = 879,739,047.08/x - Step 3: Cross multiply
1,622,295,181.16x = 2,238,767,946.42 × 879,739,047.08 - Step 4: Simplify right side
1,622,295,181.16x = 1,969,531,579,816,779,520 - Step 5: Solve for x
x = 1,969,531,579,816,779,520/1,622,295,181.16 - Step 6: Final answer
x = 1,214,040,208.40
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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.