Finding the Fourth Proportional to 85,511,778.56, 128,288,926.08 and 24,928,037.12
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Solution
The fourth proportional to 85,511,778.56, 128,288,926.08 and 24,928,037.12 is: 37,398,252.79
Step by Step Solution
- Step 1: Write the proportion equation
85,511,778.56 : 128,288,926.08 = 24,928,037.12 : x - Step 2: Convert to fraction form
85,511,778.56/128,288,926.08 = 24,928,037.12/x - Step 3: Cross multiply
85,511,778.56x = 128,288,926.08 × 24,928,037.12 - Step 4: Simplify right side
85,511,778.56x = 3,197,991,111,407,176 - Step 5: Solve for x
x = 3,197,991,111,407,176/85,511,778.56 - Step 6: Final answer
x = 37,398,252.79
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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.