Finding the Fourth Proportional to 586,078,979.20, 879,118,468.80 and 149,378,819.20
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Solution
The fourth proportional to 586,078,979.20, 879,118,468.80 and 149,378,819.20 is: 224,068,228.80
Step by Step Solution
- Step 1: Write the proportion equation
586,078,979.20 : 879,118,468.80 = 149,378,819.20 : x - Step 2: Convert to fraction form
586,078,979.20/879,118,468.80 = 149,378,819.20/x - Step 3: Cross multiply
586,078,979.20x = 879,118,468.80 × 149,378,819.20 - Step 4: Simplify right side
586,078,979.20x = 131,321,678,806,256,016 - Step 5: Solve for x
x = 131,321,678,806,256,016/586,078,979.20 - Step 6: Final answer
x = 224,068,228.80
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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.