Finding the Fourth Proportional to 976,215,391.76, 1,347,203,548.68 and 574,357,191.68
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Solution
The fourth proportional to 976,215,391.76, 1,347,203,548.68 and 574,357,191.68 is: 792,628,402.88
Step by Step Solution
- Step 1: Write the proportion equation
976,215,391.76 : 1,347,203,548.68 = 574,357,191.68 : x - Step 2: Convert to fraction form
976,215,391.76/1,347,203,548.68 = 574,357,191.68/x - Step 3: Cross multiply
976,215,391.76x = 1,347,203,548.68 × 574,357,191.68 - Step 4: Simplify right side
976,215,391.76x = 773,776,046,841,174,912 - Step 5: Solve for x
x = 773,776,046,841,174,912/976,215,391.76 - Step 6: Final answer
x = 792,628,402.88
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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.