Finding the Fourth Proportional to 1,816,688,574.11, 2,507,031,330.60 and 981,313,513.76
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Solution
The fourth proportional to 1,816,688,574.11, 2,507,031,330.60 and 981,313,513.76 is: 1,354,213,242.27
Step by Step Solution
- Step 1: Write the proportion equation
1,816,688,574.11 : 2,507,031,330.60 = 981,313,513.76 : x - Step 2: Convert to fraction form
1,816,688,574.11/2,507,031,330.60 = 981,313,513.76/x - Step 3: Cross multiply
1,816,688,574.11x = 2,507,031,330.60 × 981,313,513.76 - Step 4: Simplify right side
1,816,688,574.11x = 2,460,183,724,137,494,016 - Step 5: Solve for x
x = 2,460,183,724,137,494,016/1,816,688,574.11 - Step 6: Final answer
x = 1,354,213,242.27
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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.