Finding the Fourth Proportional to 2,179,313,751.51, 3,007,516,490.42 and 1,189,302,937.11
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Solution
The fourth proportional to 2,179,313,751.51, 3,007,516,490.42 and 1,189,302,937.11 is: 1,641,272,713.94
Step by Step Solution
- Step 1: Write the proportion equation
2,179,313,751.51 : 3,007,516,490.42 = 1,189,302,937.11 : x - Step 2: Convert to fraction form
2,179,313,751.51/3,007,516,490.42 = 1,189,302,937.11/x - Step 3: Cross multiply
2,179,313,751.51x = 3,007,516,490.42 × 1,189,302,937.11 - Step 4: Simplify right side
2,179,313,751.51x = 3,576,848,195,457,318,400 - Step 5: Solve for x
x = 3,576,848,195,457,318,400/2,179,313,751.51 - Step 6: Final answer
x = 1,641,272,713.94
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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.