Finding the Fourth Proportional to 186,624,228.80, 279,936,343.20 and 168,767,811.20
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Solution
The fourth proportional to 186,624,228.80, 279,936,343.20 and 168,767,811.20 is: 253,151,716.80
Step by Step Solution
- Step 1: Write the proportion equation
186,624,228.80 : 279,936,343.20 = 168,767,811.20 : x - Step 2: Convert to fraction form
186,624,228.80/279,936,343.20 = 168,767,811.20/x - Step 3: Cross multiply
186,624,228.80x = 279,936,343.20 × 168,767,811.20 - Step 4: Simplify right side
186,624,228.80x = 47,244,243,917,196,000 - Step 5: Solve for x
x = 47,244,243,917,196,000/186,624,228.80 - Step 6: Final answer
x = 253,151,716.80
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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.