Finding the Fourth Proportional to 1,581,133,124.40, 2,181,963,918.56 and 876,330,609.16
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Solution
The fourth proportional to 1,581,133,124.40, 2,181,963,918.56 and 876,330,609.16 is: 1,209,336,355.31
Step by Step Solution
- Step 1: Write the proportion equation
1,581,133,124.40 : 2,181,963,918.56 = 876,330,609.16 : x - Step 2: Convert to fraction form
1,581,133,124.40/2,181,963,918.56 = 876,330,609.16/x - Step 3: Cross multiply
1,581,133,124.40x = 2,181,963,918.56 × 876,330,609.16 - Step 4: Simplify right side
1,581,133,124.40x = 1,912,121,769,916,825,344 - Step 5: Solve for x
x = 1,912,121,769,916,825,344/1,581,133,124.40 - Step 6: Final answer
x = 1,209,336,355.31
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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.