Finding the Fourth Proportional to 13,678,677,765.75, 18,866,844,184.68 and 12,553,281,696.63
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Solution
The fourth proportional to 13,678,677,765.75, 18,866,844,184.68 and 12,553,281,696.63 is: 17,314,598,225.99
Step by Step Solution
- Step 1: Write the proportion equation
13,678,677,765.75 : 18,866,844,184.68 = 12,553,281,696.63 : x - Step 2: Convert to fraction form
13,678,677,765.75/18,866,844,184.68 = 12,553,281,696.63/x - Step 3: Cross multiply
13,678,677,765.75x = 18,866,844,184.68 × 12,553,281,696.63 - Step 4: Simplify right side
13,678,677,765.75x = 236,840,809,776,713,596,928 - Step 5: Solve for x
x = 236,840,809,776,713,596,928/13,678,677,765.75 - Step 6: Final answer
x = 17,314,598,225.99
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1.5x scale
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.