Finding the Fourth Proportional to 10,553,743.20, 15,830,614.80 and 7,194,511.20
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Solution
The fourth proportional to 10,553,743.20, 15,830,614.80 and 7,194,511.20 is: 10,791,766.80
Step by Step Solution
- Step 1: Write the proportion equation
10,553,743.20 : 15,830,614.80 = 7,194,511.20 : x - Step 2: Convert to fraction form
10,553,743.20/15,830,614.80 = 7,194,511.20/x - Step 3: Cross multiply
10,553,743.20x = 15,830,614.80 × 7,194,511.20 - Step 4: Simplify right side
10,553,743.20x = 113,893,535,481,485.77 - Step 5: Solve for x
x = 113,893,535,481,485.77/10,553,743.20 - Step 6: Final answer
x = 10,791,766.80
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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.