Finding the Fourth Proportional to 7,338,818.70, 11,008,228.06 and 1,947,458.70
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Solution
The fourth proportional to 7,338,818.70, 11,008,228.06 and 1,947,458.70 is: 2,921,188.05
Step by Step Solution
- Step 1: Write the proportion equation
7,338,818.70 : 11,008,228.06 = 1,947,458.70 : x - Step 2: Convert to fraction form
7,338,818.70/11,008,228.06 = 1,947,458.70/x - Step 3: Cross multiply
7,338,818.70x = 11,008,228.06 × 1,947,458.70 - Step 4: Simplify right side
7,338,818.70x = 21,438,069,507,031.12 - Step 5: Solve for x
x = 21,438,069,507,031.12/7,338,818.70 - Step 6: Final answer
x = 2,921,188.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.