Finding the Fourth Proportional to 128,281,198.08, 192,401,314.08 and 37,383,525.12
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Solution
The fourth proportional to 128,281,198.08, 192,401,314.08 and 37,383,525.12 is: 56,069,318.54
Step by Step Solution
- Step 1: Write the proportion equation
128,281,198.08 : 192,401,314.08 = 37,383,525.12 : x - Step 2: Convert to fraction form
128,281,198.08/192,401,314.08 = 37,383,525.12/x - Step 3: Cross multiply
128,281,198.08x = 192,401,314.08 × 37,383,525.12 - Step 4: Simplify right side
128,281,198.08x = 7,192,639,358,030,690 - Step 5: Solve for x
x = 7,192,639,358,030,690/128,281,198.08 - Step 6: Final answer
x = 56,069,318.54
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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.