Finding the Fourth Proportional to 775,747,239.12, 1,070,553,945.24 and 423,345,985.92
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Solution
The fourth proportional to 775,747,239.12, 1,070,553,945.24 and 423,345,985.92 is: 584,229,878.72
Step by Step Solution
- Step 1: Write the proportion equation
775,747,239.12 : 1,070,553,945.24 = 423,345,985.92 : x - Step 2: Convert to fraction form
775,747,239.12/1,070,553,945.24 = 423,345,985.92/x - Step 3: Cross multiply
775,747,239.12x = 1,070,553,945.24 × 423,345,985.92 - Step 4: Simplify right side
775,747,239.12x = 453,214,715,428,173,504 - Step 5: Solve for x
x = 453,214,715,428,173,504/775,747,239.12 - Step 6: Final answer
x = 584,229,878.72
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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.