Finding the Fourth Proportional to 664,302,639.70, 996,453,959.55 and 276,403,853.80
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Solution
The fourth proportional to 664,302,639.70, 996,453,959.55 and 276,403,853.80 is: 414,605,780.70
Step by Step Solution
- Step 1: Write the proportion equation
664,302,639.70 : 996,453,959.55 = 276,403,853.80 : x - Step 2: Convert to fraction form
664,302,639.70/996,453,959.55 = 276,403,853.80/x - Step 3: Cross multiply
664,302,639.70x = 996,453,959.55 × 276,403,853.80 - Step 4: Simplify right side
664,302,639.70x = 275,423,714,553,889,312 - Step 5: Solve for x
x = 275,423,714,553,889,312/664,302,639.70 - Step 6: Final answer
x = 414,605,780.70
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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.