Finding the Fourth Proportional to 1,653,370,761.12, 2,281,650,644.42 and 910,814,823.87
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Solution
The fourth proportional to 1,653,370,761.12, 2,281,650,644.42 and 910,814,823.87 is: 1,256,923,902.79
Step by Step Solution
- Step 1: Write the proportion equation
1,653,370,761.12 : 2,281,650,644.42 = 910,814,823.87 : x - Step 2: Convert to fraction form
1,653,370,761.12/2,281,650,644.42 = 910,814,823.87/x - Step 3: Cross multiply
1,653,370,761.12x = 2,281,650,644.42 × 910,814,823.87 - Step 4: Simplify right side
1,653,370,761.12x = 2,078,161,229,830,274,304 - Step 5: Solve for x
x = 2,078,161,229,830,274,304/1,653,370,761.12 - Step 6: Final answer
x = 1,256,923,902.79
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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.