Finding the Fourth Proportional to 734,856,538.40, 1,102,284,807.60 and 298,366,330.40
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Solution
The fourth proportional to 734,856,538.40, 1,102,284,807.60 and 298,366,330.40 is: 447,549,495.60
Step by Step Solution
- Step 1: Write the proportion equation
734,856,538.40 : 1,102,284,807.60 = 298,366,330.40 : x - Step 2: Convert to fraction form
734,856,538.40/1,102,284,807.60 = 298,366,330.40/x - Step 3: Cross multiply
734,856,538.40x = 1,102,284,807.60 × 298,366,330.40 - Step 4: Simplify right side
734,856,538.40x = 328,884,673,099,281,984 - Step 5: Solve for x
x = 328,884,673,099,281,984/734,856,538.40 - Step 6: Final answer
x = 447,549,495.60
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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.