Finding the Fourth Proportional to 128,404,186, 192,492,903.70 and 98,246,680.72
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Solution
The fourth proportional to 128,404,186, 192,492,903.70 and 98,246,680.72 is: 147,283,273.54
Step by Step Solution
- Step 1: Write the proportion equation
128,404,186 : 192,492,903.70 = 98,246,680.72 : x - Step 2: Convert to fraction form
128,404,186/192,492,903.70 = 98,246,680.72/x - Step 3: Cross multiply
128,404,186x = 192,492,903.70 × 98,246,680.72 - Step 4: Simplify right side
128,404,186x = 18,911,788,850,679,604 - Step 5: Solve for x
x = 18,911,788,850,679,604/128,404,186 - Step 6: Final answer
x = 147,283,273.54
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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.