Finding the Fourth Proportional to 774,145,161.60, 1,159,874,049.60 and 725,772,220.80
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Solution
The fourth proportional to 774,145,161.60, 1,159,874,049.60 and 725,772,220.80 is: 1,087,398,599.88
Step by Step Solution
- Step 1: Write the proportion equation
774,145,161.60 : 1,159,874,049.60 = 725,772,220.80 : x - Step 2: Convert to fraction form
774,145,161.60/1,159,874,049.60 = 725,772,220.80/x - Step 3: Cross multiply
774,145,161.60x = 1,159,874,049.60 × 725,772,220.80 - Step 4: Simplify right side
774,145,161.60x = 841,804,364,826,481,280 - Step 5: Solve for x
x = 841,804,364,826,481,280/774,145,161.60 - Step 6: Final answer
x = 1,087,398,599.88
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1.5x scale
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.