Finding the Fourth Proportional to 1,211,125,714.74, 1,671,354,218.56 and 654,209,007.84
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Solution
The fourth proportional to 1,211,125,714.74, 1,671,354,218.56 and 654,209,007.84 is: 902,808,826.34
Step by Step Solution
- Step 1: Write the proportion equation
1,211,125,714.74 : 1,671,354,218.56 = 654,209,007.84 : x - Step 2: Convert to fraction form
1,211,125,714.74/1,671,354,218.56 = 654,209,007.84/x - Step 3: Cross multiply
1,211,125,714.74x = 1,671,354,218.56 × 654,209,007.84 - Step 4: Simplify right side
1,211,125,714.74x = 1,093,414,985,073,336,192 - Step 5: Solve for x
x = 1,093,414,985,073,336,192/1,211,125,714.74 - Step 6: Final answer
x = 902,808,826.34
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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.