Finding the Fourth Proportional to 163,763,769.84, 245,730,670.20 and 66,790,621.68
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Solution
The fourth proportional to 163,763,769.84, 245,730,670.20 and 66,790,621.68 is: 100,220,605.84
Step by Step Solution
- Step 1: Write the proportion equation
163,763,769.84 : 245,730,670.20 = 66,790,621.68 : x - Step 2: Convert to fraction form
163,763,769.84/245,730,670.20 = 66,790,621.68/x - Step 3: Cross multiply
163,763,769.84x = 245,730,670.20 × 66,790,621.68 - Step 4: Simplify right side
163,763,769.84x = 16,412,504,228,501,050 - Step 5: Solve for x
x = 16,412,504,228,501,050/163,763,769.84 - Step 6: Final answer
x = 100,220,605.84
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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.