Finding the Fourth Proportional to 1,965,802,021.75, 2,712,788,881.91 and 1,073,728,511.79
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Solution
The fourth proportional to 1,965,802,021.75, 2,712,788,881.91 and 1,073,728,511.79 is: 1,481,735,564.80
Step by Step Solution
- Step 1: Write the proportion equation
1,965,802,021.75 : 2,712,788,881.91 = 1,073,728,511.79 : x - Step 2: Convert to fraction form
1,965,802,021.75/2,712,788,881.91 = 1,073,728,511.79/x - Step 3: Cross multiply
1,965,802,021.75x = 2,712,788,881.91 × 1,073,728,511.79 - Step 4: Simplify right side
1,965,802,021.75x = 2,912,798,768,973,682,176 - Step 5: Solve for x
x = 2,912,798,768,973,682,176/1,965,802,021.75 - Step 6: Final answer
x = 1,481,735,564.80
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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.