Finding the Fourth Proportional to 268,576,019.70, 402,864,029.55 and 74,487,059.70
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Solution
The fourth proportional to 268,576,019.70, 402,864,029.55 and 74,487,059.70 is: 111,730,589.55
Step by Step Solution
- Step 1: Write the proportion equation
268,576,019.70 : 402,864,029.55 = 74,487,059.70 : x - Step 2: Convert to fraction form
268,576,019.70/402,864,029.55 = 74,487,059.70/x - Step 3: Cross multiply
268,576,019.70x = 402,864,029.55 × 74,487,059.70 - Step 4: Simplify right side
268,576,019.70x = 30,008,157,020,073,416 - Step 5: Solve for x
x = 30,008,157,020,073,416/268,576,019.70 - Step 6: Final answer
x = 111,730,589.55
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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.