Finding the Fourth Proportional to 4,138,032,002.80, 6,207,048,004.20 and 2,172,125,455.60
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Solution
The fourth proportional to 4,138,032,002.80, 6,207,048,004.20 and 2,172,125,455.60 is: 3,258,188,183.40
Step by Step Solution
- Step 1: Write the proportion equation
4,138,032,002.80 : 6,207,048,004.20 = 2,172,125,455.60 : x - Step 2: Convert to fraction form
4,138,032,002.80/6,207,048,004.20 = 2,172,125,455.60/x - Step 3: Cross multiply
4,138,032,002.80x = 6,207,048,004.20 × 2,172,125,455.60 - Step 4: Simplify right side
4,138,032,002.80x = 13,482,486,974,053,994,496 - Step 5: Solve for x
x = 13,482,486,974,053,994,496/4,138,032,002.80 - Step 6: Final answer
x = 3,258,188,183.40
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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.