Finding the Fourth Proportional to 127,646,449,765.87, 191,469,674,661.98 and 42,656,244,281.99
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Solution
The fourth proportional to 127,646,449,765.87, 191,469,674,661.98 and 42,656,244,281.99 is: 63,984,366,427.39
Step by Step Solution
- Step 1: Write the proportion equation
127,646,449,765.87 : 191,469,674,661.98 = 42,656,244,281.99 : x - Step 2: Convert to fraction form
127,646,449,765.87/191,469,674,661.98 = 42,656,244,281.99/x - Step 3: Cross multiply
127,646,449,765.87x = 191,469,674,661.98 × 42,656,244,281.99 - Step 4: Simplify right side
127,646,449,765.87x = 8,167,377,214,974,570,004,480 - Step 5: Solve for x
x = 8,167,377,214,974,570,004,480/127,646,449,765.87 - Step 6: Final answer
x = 63,984,366,427.39
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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.