Finding the Fourth Proportional to 177,168,975.80, 265,753,463.70 and 81,617,487.80
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Solution
The fourth proportional to 177,168,975.80, 265,753,463.70 and 81,617,487.80 is: 122,426,231.70
Step by Step Solution
- Step 1: Write the proportion equation
177,168,975.80 : 265,753,463.70 = 81,617,487.80 : x - Step 2: Convert to fraction form
177,168,975.80/265,753,463.70 = 81,617,487.80/x - Step 3: Cross multiply
177,168,975.80x = 265,753,463.70 × 81,617,487.80 - Step 4: Simplify right side
177,168,975.80x = 21,690,130,081,342,492 - Step 5: Solve for x
x = 21,690,130,081,342,492/177,168,975.80 - Step 6: Final answer
x = 122,426,231.70
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1.5x scale
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.