Finding the Fourth Proportional to 13,869,748.57, 19,141,693.73 and 7,989,585.97
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Solution
The fourth proportional to 13,869,748.57, 19,141,693.73 and 7,989,585.97 is: 11,026,458.55
Step by Step Solution
- Step 1: Write the proportion equation
13,869,748.57 : 19,141,693.73 = 7,989,585.97 : x - Step 2: Convert to fraction form
13,869,748.57/19,141,693.73 = 7,989,585.97/x - Step 3: Cross multiply
13,869,748.57x = 19,141,693.73 × 7,989,585.97 - Step 4: Simplify right side
13,869,748.57x = 152,934,207,667,244.97 - Step 5: Solve for x
x = 152,934,207,667,244.97/13,869,748.57 - Step 6: Final answer
x = 11,026,458.55
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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.