Finding the Fourth Proportional to 515,450,542.88, 711,321,865.36 and 283,663,534.88
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Solution
The fourth proportional to 515,450,542.88, 711,321,865.36 and 283,663,534.88 is: 391,455,742.07
Step by Step Solution
- Step 1: Write the proportion equation
515,450,542.88 : 711,321,865.36 = 283,663,534.88 : x - Step 2: Convert to fraction form
515,450,542.88/711,321,865.36 = 283,663,534.88/x - Step 3: Cross multiply
515,450,542.88x = 711,321,865.36 × 283,663,534.88 - Step 4: Simplify right side
515,450,542.88x = 201,776,074,765,453,024 - Step 5: Solve for x
x = 201,776,074,765,453,024/515,450,542.88 - Step 6: Final answer
x = 391,455,742.07
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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.