Finding the Fourth Proportional to 422,707,239.49, 583,340,719.68 and 234,538,940.47
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Solution
The fourth proportional to 422,707,239.49, 583,340,719.68 and 234,538,940.47 is: 323,666,361.83
Step by Step Solution
- Step 1: Write the proportion equation
422,707,239.49 : 583,340,719.68 = 234,538,940.47 : x - Step 2: Convert to fraction form
422,707,239.49/583,340,719.68 = 234,538,940.47/x - Step 3: Cross multiply
422,707,239.49x = 583,340,719.68 × 234,538,940.47 - Step 4: Simplify right side
422,707,239.49x = 136,816,114,326,754,464 - Step 5: Solve for x
x = 136,816,114,326,754,464/422,707,239.49 - Step 6: Final answer
x = 323,666,361.83
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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.