Finding the Fourth Proportional to 1,465,631,642.70, 2,198,447,464.05 and 649,338,266.70
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Solution
The fourth proportional to 1,465,631,642.70, 2,198,447,464.05 and 649,338,266.70 is: 974,007,400.05
Step by Step Solution
- Step 1: Write the proportion equation
1,465,631,642.70 : 2,198,447,464.05 = 649,338,266.70 : x - Step 2: Convert to fraction form
1,465,631,642.70/2,198,447,464.05 = 649,338,266.70/x - Step 3: Cross multiply
1,465,631,642.70x = 2,198,447,464.05 × 649,338,266.70 - Step 4: Simplify right side
1,465,631,642.70x = 1,427,536,065,737,237,760 - Step 5: Solve for x
x = 1,427,536,065,737,237,760/1,465,631,642.70 - Step 6: Final answer
x = 974,007,400.05
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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.