Finding the Fourth Proportional to 660,574,976.06, 990,207,964.62 and 310,193,827.29
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Solution
The fourth proportional to 660,574,976.06, 990,207,964.62 and 310,193,827.29 is: 464,983,400.05
Step by Step Solution
- Step 1: Write the proportion equation
660,574,976.06 : 990,207,964.62 = 310,193,827.29 : x - Step 2: Convert to fraction form
660,574,976.06/990,207,964.62 = 310,193,827.29/x - Step 3: Cross multiply
660,574,976.06x = 990,207,964.62 × 310,193,827.29 - Step 4: Simplify right side
660,574,976.06x = 307,156,398,358,518,720 - Step 5: Solve for x
x = 307,156,398,358,518,720/660,574,976.06 - Step 6: Final answer
x = 464,983,400.05
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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.