Finding the Fourth Proportional to 208,764,242,839.40, 313,018,207,926.18 and 81,129,906,324.55
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Solution
The fourth proportional to 208,764,242,839.40, 313,018,207,926.18 and 81,129,906,324.55 is: 121,645,055,405.71
Step by Step Solution
- Step 1: Write the proportion equation
208,764,242,839.40 : 313,018,207,926.18 = 81,129,906,324.55 : x - Step 2: Convert to fraction form
208,764,242,839.40/313,018,207,926.18 = 81,129,906,324.55/x - Step 3: Cross multiply
208,764,242,839.40x = 313,018,207,926.18 × 81,129,906,324.55 - Step 4: Simplify right side
208,764,242,839.40x = 25,395,137,886,929,496,834,048 - Step 5: Solve for x
x = 25,395,137,886,929,496,834,048/208,764,242,839.40 - Step 6: Final answer
x = 121,645,055,405.71
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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.