Finding the Fourth Proportional to 48,478,963.80, 72,743,881.86 and 18,207,721.56
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Solution
The fourth proportional to 48,478,963.80, 72,743,881.86 and 18,207,721.56 is: 27,321,135.65
Step by Step Solution
- Step 1: Write the proportion equation
48,478,963.80 : 72,743,881.86 = 18,207,721.56 : x - Step 2: Convert to fraction form
48,478,963.80/72,743,881.86 = 18,207,721.56/x - Step 3: Cross multiply
48,478,963.80x = 72,743,881.86 × 18,207,721.56 - Step 4: Simplify right side
48,478,963.80x = 1,324,500,346,100,414.75 - Step 5: Solve for x
x = 1,324,500,346,100,414.75/48,478,963.80 - Step 6: Final answer
x = 27,321,135.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.