Finding the Fourth Proportional to 939,833,859.09, 1,296,894,687.48 and 543,382,284.81
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Solution
The fourth proportional to 939,833,859.09, 1,296,894,687.48 and 543,382,284.81 is: 749,823,590.23
Step by Step Solution
- Step 1: Write the proportion equation
939,833,859.09 : 1,296,894,687.48 = 543,382,284.81 : x - Step 2: Convert to fraction form
939,833,859.09/1,296,894,687.48 = 543,382,284.81/x - Step 3: Cross multiply
939,833,859.09x = 1,296,894,687.48 × 543,382,284.81 - Step 4: Simplify right side
939,833,859.09x = 704,709,598,440,833,280 - Step 5: Solve for x
x = 704,709,598,440,833,280/939,833,859.09 - Step 6: Final answer
x = 749,823,590.23
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Double scale
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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.