Finding the Fourth Proportional to 664,330,998.23, 916,759,015.79 and 366,966,840.33
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Solution
The fourth proportional to 664,330,998.23, 916,759,015.79 and 366,966,840.33 is: 506,404,428.32
Step by Step Solution
- Step 1: Write the proportion equation
664,330,998.23 : 916,759,015.79 = 366,966,840.33 : x - Step 2: Convert to fraction form
664,330,998.23/916,759,015.79 = 366,966,840.33/x - Step 3: Cross multiply
664,330,998.23x = 916,759,015.79 × 366,966,840.33 - Step 4: Simplify right side
664,330,998.23x = 336,420,159,369,414,272 - Step 5: Solve for x
x = 336,420,159,369,414,272/664,330,998.23 - Step 6: Final answer
x = 506,404,428.32
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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.