Finding the Fourth Proportional to 549,366,942.90, 824,050,414.35 and 507,276,815.70
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Solution
The fourth proportional to 549,366,942.90, 824,050,414.35 and 507,276,815.70 is: 760,915,223.55
Step by Step Solution
- Step 1: Write the proportion equation
549,366,942.90 : 824,050,414.35 = 507,276,815.70 : x - Step 2: Convert to fraction form
549,366,942.90/824,050,414.35 = 507,276,815.70/x - Step 3: Cross multiply
549,366,942.90x = 824,050,414.35 × 507,276,815.70 - Step 4: Simplify right side
549,366,942.90x = 418,021,670,167,733,568 - Step 5: Solve for x
x = 418,021,670,167,733,568/549,366,942.90 - Step 6: Final answer
x = 760,915,223.55
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Double scale
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Similar ratio
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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.