Finding the Fourth Proportional to 6,327,168,031.20, 9,490,752,046.80 and 4,257,881,119.20
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Solution
The fourth proportional to 6,327,168,031.20, 9,490,752,046.80 and 4,257,881,119.20 is: 6,386,821,678.80
Step by Step Solution
- Step 1: Write the proportion equation
6,327,168,031.20 : 9,490,752,046.80 = 4,257,881,119.20 : x - Step 2: Convert to fraction form
6,327,168,031.20/9,490,752,046.80 = 4,257,881,119.20/x - Step 3: Cross multiply
6,327,168,031.20x = 9,490,752,046.80 × 4,257,881,119.20 - Step 4: Simplify right side
6,327,168,031.20x = 40,410,493,947,078,467,584 - Step 5: Solve for x
x = 40,410,493,947,078,467,584/6,327,168,031.20 - Step 6: Final answer
x = 6,386,821,678.80
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Double scale
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Similar ratio
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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.