Finding the Fourth Proportional to 4,137,372,421.40, 6,209,081,940.90 and 2,912,932,357.40
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Solution
The fourth proportional to 4,137,372,421.40, 6,209,081,940.90 and 2,912,932,357.40 is: 4,371,527,107.84
Step by Step Solution
- Step 1: Write the proportion equation
4,137,372,421.40 : 6,209,081,940.90 = 2,912,932,357.40 : x - Step 2: Convert to fraction form
4,137,372,421.40/6,209,081,940.90 = 2,912,932,357.40/x - Step 3: Cross multiply
4,137,372,421.40x = 6,209,081,940.90 × 2,912,932,357.40 - Step 4: Simplify right side
4,137,372,421.40x = 18,086,635,695,395,604,480 - Step 5: Solve for x
x = 18,086,635,695,395,604,480/4,137,372,421.40 - Step 6: Final answer
x = 4,371,527,107.84
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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.