Finding the Fourth Proportional to 163,560,202.60, 245,131,907.10 and 86,919,946.60
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Solution
The fourth proportional to 163,560,202.60, 245,131,907.10 and 86,919,946.60 is: 130,269,172.67
Step by Step Solution
- Step 1: Write the proportion equation
163,560,202.60 : 245,131,907.10 = 86,919,946.60 : x - Step 2: Convert to fraction form
163,560,202.60/245,131,907.10 = 86,919,946.60/x - Step 3: Cross multiply
163,560,202.60x = 245,131,907.10 × 86,919,946.60 - Step 4: Simplify right side
163,560,202.60x = 21,306,852,275,088,160 - Step 5: Solve for x
x = 21,306,852,275,088,160/163,560,202.60 - Step 6: Final answer
x = 130,269,172.67
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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.