Finding the Fourth Proportional to 68,864,406.56, 103,310,231.58 and 19,680,701.12
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Solution
The fourth proportional to 68,864,406.56, 103,310,231.58 and 19,680,701.12 is: 29,524,944.63
Step by Step Solution
- Step 1: Write the proportion equation
68,864,406.56 : 103,310,231.58 = 19,680,701.12 : x - Step 2: Convert to fraction form
68,864,406.56/103,310,231.58 = 19,680,701.12/x - Step 3: Cross multiply
68,864,406.56x = 103,310,231.58 × 19,680,701.12 - Step 4: Simplify right side
68,864,406.56x = 2,033,217,790,363,965.50 - Step 5: Solve for x
x = 2,033,217,790,363,965.50/68,864,406.56 - Step 6: Final answer
x = 29,524,944.63
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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.