Finding the Fourth Proportional to 127,646,449,758.99, 191,469,674,651.64 and 42,656,244,275.09
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Solution
The fourth proportional to 127,646,449,758.99, 191,469,674,651.64 and 42,656,244,275.09 is: 63,984,366,417.03
Step by Step Solution
- Step 1: Write the proportion equation
127,646,449,758.99 : 191,469,674,651.64 = 42,656,244,275.09 : x - Step 2: Convert to fraction form
127,646,449,758.99/191,469,674,651.64 = 42,656,244,275.09/x - Step 3: Cross multiply
127,646,449,758.99x = 191,469,674,651.64 × 42,656,244,275.09 - Step 4: Simplify right side
127,646,449,758.99x = 8,167,377,213,212,747,366,400 - Step 5: Solve for x
x = 8,167,377,213,212,747,366,400/127,646,449,758.99 - Step 6: Final answer
x = 63,984,366,417.03
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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.