Finding the Fourth Proportional to 76,913,994.36, 106,213,259.34 and 49,459,622.52
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Solution
The fourth proportional to 76,913,994.36, 106,213,259.34 and 49,459,622.52 is: 68,300,544.75
Step by Step Solution
- Step 1: Write the proportion equation
76,913,994.36 : 106,213,259.34 = 49,459,622.52 : x - Step 2: Convert to fraction form
76,913,994.36/106,213,259.34 = 49,459,622.52/x - Step 3: Cross multiply
76,913,994.36x = 106,213,259.34 × 49,459,622.52 - Step 4: Simplify right side
76,913,994.36x = 5,253,267,713,575,265 - Step 5: Solve for x
x = 5,253,267,713,575,265/76,913,994.36 - Step 6: Final answer
x = 68,300,544.75
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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.