Finding the Fourth Proportional to 18,617,420,794.30, 27,939,736,081.05 and 13,107,440,506.30
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Solution
The fourth proportional to 18,617,420,794.30, 27,939,736,081.05 and 13,107,440,506.30 is: 19,670,739,168.99
Step by Step Solution
- Step 1: Write the proportion equation
18,617,420,794.30 : 27,939,736,081.05 = 13,107,440,506.30 : x - Step 2: Convert to fraction form
18,617,420,794.30/27,939,736,081.05 = 13,107,440,506.30/x - Step 3: Cross multiply
18,617,420,794.30x = 27,939,736,081.05 × 13,107,440,506.30 - Step 4: Simplify right side
18,617,420,794.30x = 366,218,428,444,086,370,304 - Step 5: Solve for x
x = 366,218,428,444,086,370,304/18,617,420,794.30 - Step 6: Final answer
x = 19,670,739,168.99
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1.5x scale
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.