Finding the Fourth Proportional to 829,472,125.80, 1,244,208,188.70 and 284,032,381.80
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Solution
The fourth proportional to 829,472,125.80, 1,244,208,188.70 and 284,032,381.80 is: 426,048,572.70
Step by Step Solution
- Step 1: Write the proportion equation
829,472,125.80 : 1,244,208,188.70 = 284,032,381.80 : x - Step 2: Convert to fraction form
829,472,125.80/1,244,208,188.70 = 284,032,381.80/x - Step 3: Cross multiply
829,472,125.80x = 1,244,208,188.70 × 284,032,381.80 - Step 4: Simplify right side
829,472,125.80x = 353,395,415,291,524,864 - Step 5: Solve for x
x = 353,395,415,291,524,864/829,472,125.80 - Step 6: Final answer
x = 426,048,572.70
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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.