Finding the Fourth Proportional to 10,656,415.80, 15,984,623.70 and 4,672,783.80
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Solution
The fourth proportional to 10,656,415.80, 15,984,623.70 and 4,672,783.80 is: 7,009,175.70
Step by Step Solution
- Step 1: Write the proportion equation
10,656,415.80 : 15,984,623.70 = 4,672,783.80 : x - Step 2: Convert to fraction form
10,656,415.80/15,984,623.70 = 4,672,783.80/x - Step 3: Cross multiply
10,656,415.80x = 15,984,623.70 × 4,672,783.80 - Step 4: Simplify right side
10,656,415.80x = 74,692,690,674,456.05 - Step 5: Solve for x
x = 74,692,690,674,456.05/10,656,415.80 - Step 6: Final answer
x = 7,009,175.70
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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.