Finding the Fourth Proportional to 161,489,497.70, 242,234,246.55 and 75,396,055.70
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Solution
The fourth proportional to 161,489,497.70, 242,234,246.55 and 75,396,055.70 is: 113,094,083.55
Step by Step Solution
- Step 1: Write the proportion equation
161,489,497.70 : 242,234,246.55 = 75,396,055.70 : x - Step 2: Convert to fraction form
161,489,497.70/242,234,246.55 = 75,396,055.70/x - Step 3: Cross multiply
161,489,497.70x = 242,234,246.55 × 75,396,055.70 - Step 4: Simplify right side
161,489,497.70x = 18,263,506,745,331,336 - Step 5: Solve for x
x = 18,263,506,745,331,336/161,489,497.70 - Step 6: Final answer
x = 113,094,083.55
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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.