Finding the Fourth Proportional to 1,620,307,778.10, 2,430,528,022.35 and 471,450,434.10
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Solution
The fourth proportional to 1,620,307,778.10, 2,430,528,022.35 and 471,450,434.10 is: 707,194,958.09
Step by Step Solution
- Step 1: Write the proportion equation
1,620,307,778.10 : 2,430,528,022.35 = 471,450,434.10 : x - Step 2: Convert to fraction form
1,620,307,778.10/2,430,528,022.35 = 471,450,434.10/x - Step 3: Cross multiply
1,620,307,778.10x = 2,430,528,022.35 × 471,450,434.10 - Step 4: Simplify right side
1,620,307,778.10x = 1,145,873,491,229,122,048 - Step 5: Solve for x
x = 1,145,873,491,229,122,048/1,620,307,778.10 - Step 6: Final answer
x = 707,194,958.09
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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.