Finding the Fourth Proportional to 253,403,812.26, 349,697,260.80 and 137,510,308.26
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Solution
The fourth proportional to 253,403,812.26, 349,697,260.80 and 137,510,308.26 is: 189,764,225.33
Step by Step Solution
- Step 1: Write the proportion equation
253,403,812.26 : 349,697,260.80 = 137,510,308.26 : x - Step 2: Convert to fraction form
253,403,812.26/349,697,260.80 = 137,510,308.26/x - Step 3: Cross multiply
253,403,812.26x = 349,697,260.80 × 137,510,308.26 - Step 4: Simplify right side
253,403,812.26x = 48,086,978,130,285,616 - Step 5: Solve for x
x = 48,086,978,130,285,616/253,403,812.26 - Step 6: Final answer
x = 189,764,225.33
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.