Finding the Fourth Proportional to 726,764,756.70, 1,090,147,135.05 and 670,644,587.10
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Solution
The fourth proportional to 726,764,756.70, 1,090,147,135.05 and 670,644,587.10 is: 1,005,966,880.65
Step by Step Solution
- Step 1: Write the proportion equation
726,764,756.70 : 1,090,147,135.05 = 670,644,587.10 : x - Step 2: Convert to fraction form
726,764,756.70/1,090,147,135.05 = 670,644,587.10/x - Step 3: Cross multiply
726,764,756.70x = 1,090,147,135.05 × 670,644,587.10 - Step 4: Simplify right side
726,764,756.70x = 731,101,275,263,855,232 - Step 5: Solve for x
x = 731,101,275,263,855,232/726,764,756.70 - Step 6: Final answer
x = 1,005,966,880.65
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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.