Finding the Fourth Proportional to 106,670,844.62, 147,205,770.45 and 57,778,272.62
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Solution
The fourth proportional to 106,670,844.62, 147,205,770.45 and 57,778,272.62 is: 79,734,018.86
Step by Step Solution
- Step 1: Write the proportion equation
106,670,844.62 : 147,205,770.45 = 57,778,272.62 : x - Step 2: Convert to fraction form
106,670,844.62/147,205,770.45 = 57,778,272.62/x - Step 3: Cross multiply
106,670,844.62x = 147,205,770.45 × 57,778,272.62 - Step 4: Simplify right side
106,670,844.62x = 8,505,295,136,297,239 - Step 5: Solve for x
x = 8,505,295,136,297,239/106,670,844.62 - Step 6: Final answer
x = 79,734,018.86
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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.