Finding the Fourth Proportional to 20,449,670,387.49, 30,677,572,672.56 and 7,182,590,274.99
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Solution
The fourth proportional to 20,449,670,387.49, 30,677,572,672.56 and 7,182,590,274.99 is: 10,774,962,674.85
Step by Step Solution
- Step 1: Write the proportion equation
20,449,670,387.49 : 30,677,572,672.56 = 7,182,590,274.99 : x - Step 2: Convert to fraction form
20,449,670,387.49/30,677,572,672.56 = 7,182,590,274.99/x - Step 3: Cross multiply
20,449,670,387.49x = 30,677,572,672.56 × 7,182,590,274.99 - Step 4: Simplify right side
20,449,670,387.49x = 220,344,435,138,228,453,376 - Step 5: Solve for x
x = 220,344,435,138,228,453,376/20,449,670,387.49 - Step 6: Final answer
x = 10,774,962,674.85
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1.5x scale
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.