Finding the Fourth Proportional to 988,754,942.88, 1,364,454,852.84 and 542,717,692.56
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Solution
The fourth proportional to 988,754,942.88, 1,364,454,852.84 and 542,717,692.56 is: 748,935,613.08
Step by Step Solution
- Step 1: Write the proportion equation
988,754,942.88 : 1,364,454,852.84 = 542,717,692.56 : x - Step 2: Convert to fraction form
988,754,942.88/1,364,454,852.84 = 542,717,692.56/x - Step 3: Cross multiply
988,754,942.88x = 1,364,454,852.84 × 542,717,692.56 - Step 4: Simplify right side
988,754,942.88x = 740,513,789,335,619,072 - Step 5: Solve for x
x = 740,513,789,335,619,072/988,754,942.88 - Step 6: Final answer
x = 748,935,613.08
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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.