Finding the Fourth Proportional to 2,815,660,550.81, 3,885,615,407.90 and 1,528,172,438.49
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Solution
The fourth proportional to 2,815,660,550.81, 3,885,615,407.90 and 1,528,172,438.49 is: 2,108,880,053.46
Step by Step Solution
- Step 1: Write the proportion equation
2,815,660,550.81 : 3,885,615,407.90 = 1,528,172,438.49 : x - Step 2: Convert to fraction form
2,815,660,550.81/3,885,615,407.90 = 1,528,172,438.49/x - Step 3: Cross multiply
2,815,660,550.81x = 3,885,615,407.90 × 1,528,172,438.49 - Step 4: Simplify right side
2,815,660,550.81x = 5,937,890,372,907,503,616 - Step 5: Solve for x
x = 5,937,890,372,907,503,616/2,815,660,550.81 - Step 6: Final answer
x = 2,108,880,053.46
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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.