Finding the Fourth Proportional to 220,657,468.34, 304,507,291.88 and 127,891,784.99
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Solution
The fourth proportional to 220,657,468.34, 304,507,291.88 and 127,891,784.99 is: 176,490,654.92
Step by Step Solution
- Step 1: Write the proportion equation
220,657,468.34 : 304,507,291.88 = 127,891,784.99 : x - Step 2: Convert to fraction form
220,657,468.34/304,507,291.88 = 127,891,784.99/x - Step 3: Cross multiply
220,657,468.34x = 304,507,291.88 × 127,891,784.99 - Step 4: Simplify right side
220,657,468.34x = 38,943,981,101,004,128 - Step 5: Solve for x
x = 38,943,981,101,004,128/220,657,468.34 - Step 6: Final answer
x = 176,490,654.92
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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.