Finding the Fourth Proportional to 90,889,243.96, 125,428,153.62 and 49,637,350.12
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Solution
The fourth proportional to 90,889,243.96, 125,428,153.62 and 49,637,350.12 is: 68,500,087.63
Step by Step Solution
- Step 1: Write the proportion equation
90,889,243.96 : 125,428,153.62 = 49,637,350.12 : x - Step 2: Convert to fraction form
90,889,243.96/125,428,153.62 = 49,637,350.12/x - Step 3: Cross multiply
90,889,243.96x = 125,428,153.62 × 49,637,350.12 - Step 4: Simplify right side
90,889,243.96x = 6,225,921,176,141,085 - Step 5: Solve for x
x = 6,225,921,176,141,085/90,889,243.96 - Step 6: Final answer
x = 68,500,087.63
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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.