Finding the Fourth Proportional to 1,889,581,611.20, 2,834,372,416.80 and 509,535,622.40
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Solution
The fourth proportional to 1,889,581,611.20, 2,834,372,416.80 and 509,535,622.40 is: 764,303,433.60
Step by Step Solution
- Step 1: Write the proportion equation
1,889,581,611.20 : 2,834,372,416.80 = 509,535,622.40 : x - Step 2: Convert to fraction form
1,889,581,611.20/2,834,372,416.80 = 509,535,622.40/x - Step 3: Cross multiply
1,889,581,611.20x = 2,834,372,416.80 × 509,535,622.40 - Step 4: Simplify right side
1,889,581,611.20x = 1,444,213,713,507,580,160 - Step 5: Solve for x
x = 1,444,213,713,507,580,160/1,889,581,611.20 - Step 6: Final answer
x = 764,303,433.60
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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.