Finding the Fourth Proportional to 889,538,746.52, 1,227,561,345.06 and 487,651,777.40
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Solution
The fourth proportional to 889,538,746.52, 1,227,561,345.06 and 487,651,777.40 is: 672,958,287.80
Step by Step Solution
- Step 1: Write the proportion equation
889,538,746.52 : 1,227,561,345.06 = 487,651,777.40 : x - Step 2: Convert to fraction form
889,538,746.52/1,227,561,345.06 = 487,651,777.40/x - Step 3: Cross multiply
889,538,746.52x = 1,227,561,345.06 × 487,651,777.40 - Step 4: Simplify right side
889,538,746.52x = 598,622,471,786,043,648 - Step 5: Solve for x
x = 598,622,471,786,043,648/889,538,746.52 - Step 6: Final answer
x = 672,958,287.80
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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.