Finding the Fourth Proportional to 14,658,995.70, 20,231,842.36 and 8,134,720.90
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Solution
The fourth proportional to 14,658,995.70, 20,231,842.36 and 8,134,720.90 is: 11,227,262.38
Step by Step Solution
- Step 1: Write the proportion equation
14,658,995.70 : 20,231,842.36 = 8,134,720.90 : x - Step 2: Convert to fraction form
14,658,995.70/20,231,842.36 = 8,134,720.90/x - Step 3: Cross multiply
14,658,995.70x = 20,231,842.36 × 8,134,720.90 - Step 4: Simplify right side
14,658,995.70x = 164,580,390,891,397.31 - Step 5: Solve for x
x = 164,580,390,891,397.31/14,658,995.70 - Step 6: Final answer
x = 11,227,262.38
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1.5x scale
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.