Finding the Fourth Proportional to 121,795,323.74, 168,077,366.90 and 66,040,642.84
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Solution
The fourth proportional to 121,795,323.74, 168,077,366.90 and 66,040,642.84 is: 91,135,989.59
Step by Step Solution
- Step 1: Write the proportion equation
121,795,323.74 : 168,077,366.90 = 66,040,642.84 : x - Step 2: Convert to fraction form
121,795,323.74/168,077,366.90 = 66,040,642.84/x - Step 3: Cross multiply
121,795,323.74x = 168,077,366.90 × 66,040,642.84 - Step 4: Simplify right side
121,795,323.74x = 11,099,937,356,930,538 - Step 5: Solve for x
x = 11,099,937,356,930,538/121,795,323.74 - Step 6: Final answer
x = 91,135,989.59
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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.