Finding the Fourth Proportional to 186,965,611.20, 280,448,416.80 and 106,344,043.20
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Solution
The fourth proportional to 186,965,611.20, 280,448,416.80 and 106,344,043.20 is: 159,516,064.80
Step by Step Solution
- Step 1: Write the proportion equation
186,965,611.20 : 280,448,416.80 = 106,344,043.20 : x - Step 2: Convert to fraction form
186,965,611.20/280,448,416.80 = 106,344,043.20/x - Step 3: Cross multiply
186,965,611.20x = 280,448,416.80 × 106,344,043.20 - Step 4: Simplify right side
186,965,611.20x = 29,824,018,551,550,808 - Step 5: Solve for x
x = 29,824,018,551,550,808/186,965,611.20 - Step 6: Final answer
x = 159,516,064.80
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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.