Finding the Fourth Proportional to 943,006,548.26, 1,291,925,245.80 and 907,661,945.54
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Solution
The fourth proportional to 943,006,548.26, 1,291,925,245.80 and 907,661,945.54 is: 1,243,502,904.89
Step by Step Solution
- Step 1: Write the proportion equation
943,006,548.26 : 1,291,925,245.80 = 907,661,945.54 : x - Step 2: Convert to fraction form
943,006,548.26/1,291,925,245.80 = 907,661,945.54/x - Step 3: Cross multiply
943,006,548.26x = 1,291,925,245.80 × 907,661,945.54 - Step 4: Simplify right side
943,006,548.26x = 1,172,631,382,095,070,720 - Step 5: Solve for x
x = 1,172,631,382,095,070,720/943,006,548.26 - Step 6: Final answer
x = 1,243,502,904.89
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.