Finding the Fourth Proportional to 66,540,347.82, 91,829,205.51 and 40,087,029.03
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Solution
The fourth proportional to 66,540,347.82, 91,829,205.51 and 40,087,029.03 is: 55,322,223.99
Step by Step Solution
- Step 1: Write the proportion equation
66,540,347.82 : 91,829,205.51 = 40,087,029.03 : x - Step 2: Convert to fraction form
66,540,347.82/91,829,205.51 = 40,087,029.03/x - Step 3: Cross multiply
66,540,347.82x = 91,829,205.51 × 40,087,029.03 - Step 4: Simplify right side
66,540,347.82x = 3,681,160,026,586,519.50 - Step 5: Solve for x
x = 3,681,160,026,586,519.50/66,540,347.82 - Step 6: Final answer
x = 55,322,223.99
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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.