Finding the Fourth Proportional to 685,315,802.02, 1,026,297,192.65 and 618,991,217.99
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Solution
The fourth proportional to 685,315,802.02, 1,026,297,192.65 and 618,991,217.99 is: 926,972,568.60
Step by Step Solution
- Step 1: Write the proportion equation
685,315,802.02 : 1,026,297,192.65 = 618,991,217.99 : x - Step 2: Convert to fraction form
685,315,802.02/1,026,297,192.65 = 618,991,217.99/x - Step 3: Cross multiply
685,315,802.02x = 1,026,297,192.65 × 618,991,217.99 - Step 4: Simplify right side
685,315,802.02x = 635,268,949,295,046,272 - Step 5: Solve for x
x = 635,268,949,295,046,272/685,315,802.02 - Step 6: Final answer
x = 926,972,568.60
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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.