Finding the Fourth Proportional to 1,180,461,804.62, 1,628,448,902.18 and 703,816,013.08
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Solution
The fourth proportional to 1,180,461,804.62, 1,628,448,902.18 and 703,816,013.08 is: 970,915,288.70
Step by Step Solution
- Step 1: Write the proportion equation
1,180,461,804.62 : 1,628,448,902.18 = 703,816,013.08 : x - Step 2: Convert to fraction form
1,180,461,804.62/1,628,448,902.18 = 703,816,013.08/x - Step 3: Cross multiply
1,180,461,804.62x = 1,628,448,902.18 × 703,816,013.08 - Step 4: Simplify right side
1,180,461,804.62x = 1,146,128,413,830,447,872 - Step 5: Solve for x
x = 1,146,128,413,830,447,872/1,180,461,804.62 - Step 6: Final answer
x = 970,915,288.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.