Finding the Fourth Proportional to 13,065,132.92, 18,030,893.28 and 7,838,336.84
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Solution
The fourth proportional to 13,065,132.92, 18,030,893.28 and 7,838,336.84 is: 10,817,510.69
Step by Step Solution
- Step 1: Write the proportion equation
13,065,132.92 : 18,030,893.28 = 7,838,336.84 : x - Step 2: Convert to fraction form
13,065,132.92/18,030,893.28 = 7,838,336.84/x - Step 3: Cross multiply
13,065,132.92x = 18,030,893.28 × 7,838,336.84 - Step 4: Simplify right side
13,065,132.92x = 141,332,215,054,732.44 - Step 5: Solve for x
x = 141,332,215,054,732.44/13,065,132.92 - Step 6: Final answer
x = 10,817,510.69
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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.