Finding the Fourth Proportional to 13,882,756.48, 19,157,963.76 and 7,687,680.40
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Solution
The fourth proportional to 13,882,756.48, 19,157,963.76 and 7,687,680.40 is: 10,608,865.95
Step by Step Solution
- Step 1: Write the proportion equation
13,882,756.48 : 19,157,963.76 = 7,687,680.40 : x - Step 2: Convert to fraction form
13,882,756.48/19,157,963.76 = 7,687,680.40/x - Step 3: Cross multiply
13,882,756.48x = 19,157,963.76 × 7,687,680.40 - Step 4: Simplify right side
13,882,756.48x = 147,280,302,501,662.31 - Step 5: Solve for x
x = 147,280,302,501,662.31/13,882,756.48 - Step 6: Final answer
x = 10,608,865.95
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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.