Finding the Fourth Proportional to 864,090,763.05, 1,192,448,887.02 and 467,613,771.24
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Solution
The fourth proportional to 864,090,763.05, 1,192,448,887.02 and 467,613,771.24 is: 645,308,970.90
Step by Step Solution
- Step 1: Write the proportion equation
864,090,763.05 : 1,192,448,887.02 = 467,613,771.24 : x - Step 2: Convert to fraction form
864,090,763.05/1,192,448,887.02 = 467,613,771.24/x - Step 3: Cross multiply
864,090,763.05x = 1,192,448,887.02 × 467,613,771.24 - Step 4: Simplify right side
864,090,763.05x = 557,605,521,070,362,880 - Step 5: Solve for x
x = 557,605,521,070,362,880/864,090,763.05 - Step 6: Final answer
x = 645,308,970.90
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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.