Finding the Fourth Proportional to 80,955,022, 121,431,461.12 and 19,543,849.76
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Solution
The fourth proportional to 80,955,022, 121,431,461.12 and 19,543,849.76 is: 29,315,515.87
Step by Step Solution
- Step 1: Write the proportion equation
80,955,022 : 121,431,461.12 = 19,543,849.76 : x - Step 2: Convert to fraction form
80,955,022/121,431,461.12 = 19,543,849.76/x - Step 3: Cross multiply
80,955,022x = 121,431,461.12 × 19,543,849.76 - Step 4: Simplify right side
80,955,022x = 2,373,238,232,266,561.50 - Step 5: Solve for x
x = 2,373,238,232,266,561.50/80,955,022 - Step 6: Final answer
x = 29,315,515.87
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.