Finding the Fourth Proportional to 71,087,852.19, 98,101,369.49 and 39,725,901.39
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Solution
The fourth proportional to 71,087,852.19, 98,101,369.49 and 39,725,901.39 is: 54,821,818.50
Step by Step Solution
- Step 1: Write the proportion equation
71,087,852.19 : 98,101,369.49 = 39,725,901.39 : x - Step 2: Convert to fraction form
71,087,852.19/98,101,369.49 = 39,725,901.39/x - Step 3: Cross multiply
71,087,852.19x = 98,101,369.49 × 39,725,901.39 - Step 4: Simplify right side
71,087,852.19x = 3,897,165,330,338,441 - Step 5: Solve for x
x = 3,897,165,330,338,441/71,087,852.19 - Step 6: Final answer
x = 54,821,818.50
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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.