Finding the Fourth Proportional to 1,197,792,197.80, 1,796,688,296.70 and 732,202,642.60
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Solution
The fourth proportional to 1,197,792,197.80, 1,796,688,296.70 and 732,202,642.60 is: 1,098,303,963.90
Step by Step Solution
- Step 1: Write the proportion equation
1,197,792,197.80 : 1,796,688,296.70 = 732,202,642.60 : x - Step 2: Convert to fraction form
1,197,792,197.80/1,796,688,296.70 = 732,202,642.60/x - Step 3: Cross multiply
1,197,792,197.80x = 1,796,688,296.70 × 732,202,642.60 - Step 4: Simplify right side
1,197,792,197.80x = 1,315,539,918,772,232,960 - Step 5: Solve for x
x = 1,315,539,918,772,232,960/1,197,792,197.80 - Step 6: Final answer
x = 1,098,303,963.90
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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.