Finding the Fourth Proportional to 123,706,361.94, 170,704,823.81 and 71,498,779.08
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Solution
The fourth proportional to 123,706,361.94, 170,704,823.81 and 71,498,779.08 is: 98,662,561.03
Step by Step Solution
- Step 1: Write the proportion equation
123,706,361.94 : 170,704,823.81 = 71,498,779.08 : x - Step 2: Convert to fraction form
123,706,361.94/170,704,823.81 = 71,498,779.08/x - Step 3: Cross multiply
123,706,361.94x = 170,704,823.81 × 71,498,779.08 - Step 4: Simplify right side
123,706,361.94x = 12,205,186,484,886,756 - Step 5: Solve for x
x = 12,205,186,484,886,756/123,706,361.94 - Step 6: Final answer
x = 98,662,561.03
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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.