Finding the Fourth Proportional to 15,141,632.94, 20,895,347.16 and 8,266,115.02
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Solution
The fourth proportional to 15,141,632.94, 20,895,347.16 and 8,266,115.02 is: 11,407,180.70
Step by Step Solution
- Step 1: Write the proportion equation
15,141,632.94 : 20,895,347.16 = 8,266,115.02 : x - Step 2: Convert to fraction form
15,141,632.94/20,895,347.16 = 8,266,115.02/x - Step 3: Cross multiply
15,141,632.94x = 20,895,347.16 × 8,266,115.02 - Step 4: Simplify right side
15,141,632.94x = 172,723,343,007,390.34 - Step 5: Solve for x
x = 172,723,343,007,390.34/15,141,632.94 - Step 6: Final answer
x = 11,407,180.70
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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.