Finding the Fourth Proportional to 27,558,341.19, 38,011,148.67 and 18,136,130.19
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Solution
The fourth proportional to 27,558,341.19, 38,011,148.67 and 18,136,130.19 is: 25,015,117.43
Step by Step Solution
- Step 1: Write the proportion equation
27,558,341.19 : 38,011,148.67 = 18,136,130.19 : x - Step 2: Convert to fraction form
27,558,341.19/38,011,148.67 = 18,136,130.19/x - Step 3: Cross multiply
27,558,341.19x = 38,011,148.67 × 18,136,130.19 - Step 4: Simplify right side
27,558,341.19x = 689,375,140,950,565.38 - Step 5: Solve for x
x = 689,375,140,950,565.38/27,558,341.19 - Step 6: Final answer
x = 25,015,117.43
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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.