Finding the Fourth Proportional to 100,919,202.68, 139,268,597.40 and 54,509,455.85
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Solution
The fourth proportional to 100,919,202.68, 139,268,597.40 and 54,509,455.85 is: 75,223,101.84
Step by Step Solution
- Step 1: Write the proportion equation
100,919,202.68 : 139,268,597.40 = 54,509,455.85 : x - Step 2: Convert to fraction form
100,919,202.68/139,268,597.40 = 54,509,455.85/x - Step 3: Cross multiply
100,919,202.68x = 139,268,597.40 × 54,509,455.85 - Step 4: Simplify right side
100,919,202.68x = 7,591,455,460,570,382 - Step 5: Solve for x
x = 7,591,455,460,570,382/100,919,202.68 - Step 6: Final answer
x = 75,223,101.84
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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.