Finding the Fourth Proportional to 2,238,625,772.80, 3,358,369,060.80 and 858,332,636.80
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Solution
The fourth proportional to 2,238,625,772.80, 3,358,369,060.80 and 858,332,636.80 is: 1,287,663,979.54
Step by Step Solution
- Step 1: Write the proportion equation
2,238,625,772.80 : 3,358,369,060.80 = 858,332,636.80 : x - Step 2: Convert to fraction form
2,238,625,772.80/3,358,369,060.80 = 858,332,636.80/x - Step 3: Cross multiply
2,238,625,772.80x = 3,358,369,060.80 × 858,332,636.80 - Step 4: Simplify right side
2,238,625,772.80x = 2,882,597,771,304,003,584 - Step 5: Solve for x
x = 2,882,597,771,304,003,584/2,238,625,772.80 - Step 6: Final answer
x = 1,287,663,979.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.