Finding the Fourth Proportional to 681,822,214.11, 940,914,934.52 and 368,556,427.26
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Solution
The fourth proportional to 681,822,214.11, 940,914,934.52 and 368,556,427.26 is: 508,608,020.45
Step by Step Solution
- Step 1: Write the proportion equation
681,822,214.11 : 940,914,934.52 = 368,556,427.26 : x - Step 2: Convert to fraction form
681,822,214.11/940,914,934.52 = 368,556,427.26/x - Step 3: Cross multiply
681,822,214.11x = 940,914,934.52 × 368,556,427.26 - Step 4: Simplify right side
681,822,214.11x = 346,780,246,620,425,216 - Step 5: Solve for x
x = 346,780,246,620,425,216/681,822,214.11 - Step 6: Final answer
x = 508,608,020.45
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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.