Finding the Fourth Proportional to 1,381,365,430,036.20, 1,906,156,365,356.70 and 764,054,861,895.99
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Solution
The fourth proportional to 1,381,365,430,036.20, 1,906,156,365,356.70 and 764,054,861,895.99 is: 1,054,324,950,383.77
Step by Step Solution
- Step 1: Write the proportion equation
1,381,365,430,036.20 : 1,906,156,365,356.70 = 764,054,861,895.99 : x - Step 2: Convert to fraction form
1,381,365,430,036.20/1,906,156,365,356.70 = 764,054,861,895.99/x - Step 3: Cross multiply
1,381,365,430,036.20x = 1,906,156,365,356.70 × 764,054,861,895.99 - Step 4: Simplify right side
1,381,365,430,036.20x = 1,456,408,038,484,775,729,627,136 - Step 5: Solve for x
x = 1,456,408,038,484,775,729,627,136/1,381,365,430,036.20 - Step 6: Final answer
x = 1,054,324,950,383.77
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.