Finding the Fourth Proportional to 84,515,731.60, 126,868,075.80 and 65,431,094.80
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Solution
The fourth proportional to 84,515,731.60, 126,868,075.80 and 65,431,094.80 is: 98,219,786.28
Step by Step Solution
- Step 1: Write the proportion equation
84,515,731.60 : 126,868,075.80 = 65,431,094.80 : x - Step 2: Convert to fraction form
84,515,731.60/126,868,075.80 = 65,431,094.80/x - Step 3: Cross multiply
84,515,731.60x = 126,868,075.80 × 65,431,094.80 - Step 4: Simplify right side
84,515,731.60x = 8,301,117,094,763,385 - Step 5: Solve for x
x = 8,301,117,094,763,385/84,515,731.60 - Step 6: Final answer
x = 98,219,786.28
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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.