Finding the Fourth Proportional to 7,777,810.60, 11,666,715.90 and 4,941,125.80
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Solution
The fourth proportional to 7,777,810.60, 11,666,715.90 and 4,941,125.80 is: 7,411,688.70
Step by Step Solution
- Step 1: Write the proportion equation
7,777,810.60 : 11,666,715.90 = 4,941,125.80 : x - Step 2: Convert to fraction form
7,777,810.60/11,666,715.90 = 4,941,125.80/x - Step 3: Cross multiply
7,777,810.60x = 11,666,715.90 × 4,941,125.80 - Step 4: Simplify right side
7,777,810.60x = 57,646,710,934,760.22 - Step 5: Solve for x
x = 57,646,710,934,760.22/7,777,810.60 - Step 6: Final answer
x = 7,411,688.70
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1.5x scale
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.