Finding the Fourth Proportional to 472,392,734.10, 708,589,101.15 and 434,979,287.70
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Solution
The fourth proportional to 472,392,734.10, 708,589,101.15 and 434,979,287.70 is: 652,468,931.55
Step by Step Solution
- Step 1: Write the proportion equation
472,392,734.10 : 708,589,101.15 = 434,979,287.70 : x - Step 2: Convert to fraction form
472,392,734.10/708,589,101.15 = 434,979,287.70/x - Step 3: Cross multiply
472,392,734.10x = 708,589,101.15 × 434,979,287.70 - Step 4: Simplify right side
472,392,734.10x = 308,221,582,490,210,240 - Step 5: Solve for x
x = 308,221,582,490,210,240/472,392,734.10 - Step 6: Final answer
x = 652,468,931.55
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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.