Finding the Fourth Proportional to 211,995,856.30, 317,993,895.36 and 66,440,754.07
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Solution
The fourth proportional to 211,995,856.30, 317,993,895.36 and 66,440,754.07 is: 99,661,165.86
Step by Step Solution
- Step 1: Write the proportion equation
211,995,856.30 : 317,993,895.36 = 66,440,754.07 : x - Step 2: Convert to fraction form
211,995,856.30/317,993,895.36 = 66,440,754.07/x - Step 3: Cross multiply
211,995,856.30x = 317,993,895.36 × 66,440,754.07 - Step 4: Simplify right side
211,995,856.30x = 21,127,754,197,375,076 - Step 5: Solve for x
x = 21,127,754,197,375,076/211,995,856.30 - Step 6: Final answer
x = 99,661,165.86
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.