Finding the Fourth Proportional to 85,410,712.80, 128,103,627.60 and 24,820,120.80
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Solution
The fourth proportional to 85,410,712.80, 128,103,627.60 and 24,820,120.80 is: 37,226,565.70
Step by Step Solution
- Step 1: Write the proportion equation
85,410,712.80 : 128,103,627.60 = 24,820,120.80 : x - Step 2: Convert to fraction form
85,410,712.80/128,103,627.60 = 24,820,120.80/x - Step 3: Cross multiply
85,410,712.80x = 128,103,627.60 × 24,820,120.80 - Step 4: Simplify right side
85,410,712.80x = 3,179,547,511,950,214 - Step 5: Solve for x
x = 3,179,547,511,950,214/85,410,712.80 - Step 6: Final answer
x = 37,226,565.70
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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.