Finding the Fourth Proportional to 535,557,915.99, 739,045,046.79 and 297,418,219.74
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Solution
The fourth proportional to 535,557,915.99, 739,045,046.79 and 297,418,219.74 is: 410,423,327.83
Step by Step Solution
- Step 1: Write the proportion equation
535,557,915.99 : 739,045,046.79 = 297,418,219.74 : x - Step 2: Convert to fraction form
535,557,915.99/739,045,046.79 = 297,418,219.74/x - Step 3: Cross multiply
535,557,915.99x = 739,045,046.79 × 297,418,219.74 - Step 4: Simplify right side
535,557,915.99x = 219,805,462,123,946,784 - Step 5: Solve for x
x = 219,805,462,123,946,784/535,557,915.99 - Step 6: Final answer
x = 410,423,327.83
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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.