Finding the Fourth Proportional to 699,368,945.34, 965,113,810.20 and 381,818,338.68
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Solution
The fourth proportional to 699,368,945.34, 965,113,810.20 and 381,818,338.68 is: 526,900,935.63
Step by Step Solution
- Step 1: Write the proportion equation
699,368,945.34 : 965,113,810.20 = 381,818,338.68 : x - Step 2: Convert to fraction form
699,368,945.34/965,113,810.20 = 381,818,338.68/x - Step 3: Cross multiply
699,368,945.34x = 965,113,810.20 × 381,818,338.68 - Step 4: Simplify right side
699,368,945.34x = 368,498,151,647,688,832 - Step 5: Solve for x
x = 368,498,151,647,688,832/699,368,945.34 - Step 6: Final answer
x = 526,900,935.63
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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.