Finding the Fourth Proportional to 2,167,475,702.12, 2,991,198,688.84 and 1,214,874,046.45
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Solution
The fourth proportional to 2,167,475,702.12, 2,991,198,688.84 and 1,214,874,046.45 is: 1,676,572,268.51
Step by Step Solution
- Step 1: Write the proportion equation
2,167,475,702.12 : 2,991,198,688.84 = 1,214,874,046.45 : x - Step 2: Convert to fraction form
2,167,475,702.12/2,991,198,688.84 = 1,214,874,046.45/x - Step 3: Cross multiply
2,167,475,702.12x = 2,991,198,688.84 × 1,214,874,046.45 - Step 4: Simplify right side
2,167,475,702.12x = 3,633,929,654,852,331,008 - Step 5: Solve for x
x = 3,633,929,654,852,331,008/2,167,475,702.12 - Step 6: Final answer
x = 1,676,572,268.51
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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.