Finding the Fourth Proportional to 1,626,135,674.16, 2,439,256,139.36 and 774,128,134.56
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Solution
The fourth proportional to 1,626,135,674.16, 2,439,256,139.36 and 774,128,134.56 is: 1,161,217,255.66
Step by Step Solution
- Step 1: Write the proportion equation
1,626,135,674.16 : 2,439,256,139.36 = 774,128,134.56 : x - Step 2: Convert to fraction form
1,626,135,674.16/2,439,256,139.36 = 774,128,134.56/x - Step 3: Cross multiply
1,626,135,674.16x = 2,439,256,139.36 × 774,128,134.56 - Step 4: Simplify right side
1,626,135,674.16x = 1,888,296,804,876,784,128 - Step 5: Solve for x
x = 1,888,296,804,876,784,128/1,626,135,674.16 - Step 6: Final answer
x = 1,161,217,255.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.