Finding the Fourth Proportional to 1,129,450,758.18, 1,558,826,888.76 and 940,980,190.26
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Solution
The fourth proportional to 1,129,450,758.18, 1,558,826,888.76 and 940,980,190.26 is: 1,298,706,660.51
Step by Step Solution
- Step 1: Write the proportion equation
1,129,450,758.18 : 1,558,826,888.76 = 940,980,190.26 : x - Step 2: Convert to fraction form
1,129,450,758.18/1,558,826,888.76 = 940,980,190.26/x - Step 3: Cross multiply
1,129,450,758.18x = 1,558,826,888.76 × 940,980,190.26 - Step 4: Simplify right side
1,129,450,758.18x = 1,466,825,222,367,788,544 - Step 5: Solve for x
x = 1,466,825,222,367,788,544/1,129,450,758.18 - Step 6: Final answer
x = 1,298,706,660.51
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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.