Finding the Fourth Proportional to 4,992,715,622.40, 7,489,969,228.80 and 2,084,964,403.20
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Solution
The fourth proportional to 4,992,715,622.40, 7,489,969,228.80 and 2,084,964,403.20 is: 3,127,820,690.02
Step by Step Solution
- Step 1: Write the proportion equation
4,992,715,622.40 : 7,489,969,228.80 = 2,084,964,403.20 : x - Step 2: Convert to fraction form
4,992,715,622.40/7,489,969,228.80 = 2,084,964,403.20/x - Step 3: Cross multiply
4,992,715,622.40x = 7,489,969,228.80 × 2,084,964,403.20 - Step 4: Simplify right side
4,992,715,622.40x = 15,616,319,223,111,356,416 - Step 5: Solve for x
x = 15,616,319,223,111,356,416/4,992,715,622.40 - Step 6: Final answer
x = 3,127,820,690.02
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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.