Finding the Fourth Proportional to 14,486,555.13, 19,991,380.56 and 7,960,165.62
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Solution
The fourth proportional to 14,486,555.13, 19,991,380.56 and 7,960,165.62 is: 10,984,992.55
Step by Step Solution
- Step 1: Write the proportion equation
14,486,555.13 : 19,991,380.56 = 7,960,165.62 : x - Step 2: Convert to fraction form
14,486,555.13/19,991,380.56 = 7,960,165.62/x - Step 3: Cross multiply
14,486,555.13x = 19,991,380.56 × 7,960,165.62 - Step 4: Simplify right side
14,486,555.13x = 159,134,700,230,048.34 - Step 5: Solve for x
x = 159,134,700,230,048.34/14,486,555.13 - Step 6: Final answer
x = 10,984,992.55
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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.