Finding the Fourth Proportional to 10,363,456.79, 15,558,655.97 and 7,968,982.93
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Solution
The fourth proportional to 10,363,456.79, 15,558,655.97 and 7,968,982.93 is: 11,963,832.76
Step by Step Solution
- Step 1: Write the proportion equation
10,363,456.79 : 15,558,655.97 = 7,968,982.93 : x - Step 2: Convert to fraction form
10,363,456.79/15,558,655.97 = 7,968,982.93/x - Step 3: Cross multiply
10,363,456.79x = 15,558,655.97 × 7,968,982.93 - Step 4: Simplify right side
10,363,456.79x = 123,986,663,838,672.59 - Step 5: Solve for x
x = 123,986,663,838,672.59/10,363,456.79 - Step 6: Final answer
x = 11,963,832.76
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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.