Finding the Fourth Proportional to 7,665,561,146.80, 11,498,341,720.20 and 3,303,493,418.80
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Solution
The fourth proportional to 7,665,561,146.80, 11,498,341,720.20 and 3,303,493,418.80 is: 4,955,240,128.20
Step by Step Solution
- Step 1: Write the proportion equation
7,665,561,146.80 : 11,498,341,720.20 = 3,303,493,418.80 : x - Step 2: Convert to fraction form
7,665,561,146.80/11,498,341,720.20 = 3,303,493,418.80/x - Step 3: Cross multiply
7,665,561,146.80x = 11,498,341,720.20 × 3,303,493,418.80 - Step 4: Simplify right side
7,665,561,146.80x = 37,984,696,199,794,171,904 - Step 5: Solve for x
x = 37,984,696,199,794,171,904/7,665,561,146.80 - Step 6: Final answer
x = 4,955,240,128.20
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Double scale
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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.