Finding the Fourth Proportional to 7,488,656,190.80, 11,224,922,129.40 and 2,828,729,560.40
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Solution
The fourth proportional to 7,488,656,190.80, 11,224,922,129.40 and 2,828,729,560.40 is: 4,240,048,979.63
Step by Step Solution
- Step 1: Write the proportion equation
7,488,656,190.80 : 11,224,922,129.40 = 2,828,729,560.40 : x - Step 2: Convert to fraction form
7,488,656,190.80/11,224,922,129.40 = 2,828,729,560.40/x - Step 3: Cross multiply
7,488,656,190.80x = 11,224,922,129.40 × 2,828,729,560.40 - Step 4: Simplify right side
7,488,656,190.80x = 31,752,269,040,621,895,680 - Step 5: Solve for x
x = 31,752,269,040,621,895,680/7,488,656,190.80 - Step 6: Final answer
x = 4,240,048,979.63
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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.