Finding the Fourth Proportional to 29,079,868.44, 40,129,697.80 and 15,849,164.52
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Solution
The fourth proportional to 29,079,868.44, 40,129,697.80 and 15,849,164.52 is: 21,871,563.27
Step by Step Solution
- Step 1: Write the proportion equation
29,079,868.44 : 40,129,697.80 = 15,849,164.52 : x - Step 2: Convert to fraction form
29,079,868.44/40,129,697.80 = 15,849,164.52/x - Step 3: Cross multiply
29,079,868.44x = 40,129,697.80 × 15,849,164.52 - Step 4: Simplify right side
29,079,868.44x = 636,022,182,570,082 - Step 5: Solve for x
x = 636,022,182,570,082/29,079,868.44 - Step 6: Final answer
x = 21,871,563.27
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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.