Finding the Fourth Proportional to 1,353,540,653.13, 1,868,498,141.58 and 852,485,809.26
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Solution
The fourth proportional to 1,353,540,653.13, 1,868,498,141.58 and 852,485,809.26 is: 1,176,815,891.45
Step by Step Solution
- Step 1: Write the proportion equation
1,353,540,653.13 : 1,868,498,141.58 = 852,485,809.26 : x - Step 2: Convert to fraction form
1,353,540,653.13/1,868,498,141.58 = 852,485,809.26/x - Step 3: Cross multiply
1,353,540,653.13x = 1,868,498,141.58 × 852,485,809.26 - Step 4: Simplify right side
1,353,540,653.13x = 1,592,868,150,325,632,256 - Step 5: Solve for x
x = 1,592,868,150,325,632,256/1,353,540,653.13 - Step 6: Final answer
x = 1,176,815,891.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.