Finding the Fourth Proportional to 79,860,459.75, 110,207,434.64 and 43,191,030.75
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Solution
The fourth proportional to 79,860,459.75, 110,207,434.64 and 43,191,030.75 is: 59,603,622.53
Step by Step Solution
- Step 1: Write the proportion equation
79,860,459.75 : 110,207,434.64 = 43,191,030.75 : x - Step 2: Convert to fraction form
79,860,459.75/110,207,434.64 = 43,191,030.75/x - Step 3: Cross multiply
79,860,459.75x = 110,207,434.64 × 43,191,030.75 - Step 4: Simplify right side
79,860,459.75x = 4,759,972,698,198,900 - Step 5: Solve for x
x = 4,759,972,698,198,900/79,860,459.75 - Step 6: Final answer
x = 59,603,622.53
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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.