Finding the Fourth Proportional to 123,318,366.12, 184,919,617.36 and 71,517,689.18
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Solution
The fourth proportional to 123,318,366.12, 184,919,617.36 and 71,517,689.18 is: 107,242,936.59
Step by Step Solution
- Step 1: Write the proportion equation
123,318,366.12 : 184,919,617.36 = 71,517,689.18 : x - Step 2: Convert to fraction form
123,318,366.12/184,919,617.36 = 71,517,689.18/x - Step 3: Cross multiply
123,318,366.12x = 184,919,617.36 × 71,517,689.18 - Step 4: Simplify right side
123,318,366.12x = 13,225,023,717,637,014 - Step 5: Solve for x
x = 13,225,023,717,637,014/123,318,366.12 - Step 6: Final answer
x = 107,242,936.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.