Finding the Fourth Proportional to 1,617,069,359.09, 2,231,562,438.29 and 874,513,421.84
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Solution
The fourth proportional to 1,617,069,359.09, 2,231,562,438.29 and 874,513,421.84 is: 1,206,832,157.81
Step by Step Solution
- Step 1: Write the proportion equation
1,617,069,359.09 : 2,231,562,438.29 = 874,513,421.84 : x - Step 2: Convert to fraction form
1,617,069,359.09/2,231,562,438.29 = 874,513,421.84/x - Step 3: Cross multiply
1,617,069,359.09x = 2,231,562,438.29 × 874,513,421.84 - Step 4: Simplify right side
1,617,069,359.09x = 1,951,531,303,966,366,976 - Step 5: Solve for x
x = 1,951,531,303,966,366,976/1,617,069,359.09 - Step 6: Final answer
x = 1,206,832,157.81
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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.