Finding the Fourth Proportional to 699,368,942.34, 965,113,806.06 and 381,818,335.68
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Solution
The fourth proportional to 699,368,942.34, 965,113,806.06 and 381,818,335.68 is: 526,900,931.49
Step by Step Solution
- Step 1: Write the proportion equation
699,368,942.34 : 965,113,806.06 = 381,818,335.68 : x - Step 2: Convert to fraction form
699,368,942.34/965,113,806.06 = 381,818,335.68/x - Step 3: Cross multiply
699,368,942.34x = 965,113,806.06 × 381,818,335.68 - Step 4: Simplify right side
699,368,942.34x = 368,498,147,171,619,456 - Step 5: Solve for x
x = 368,498,147,171,619,456/699,368,942.34 - Step 6: Final answer
x = 526,900,931.49
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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.