Finding the Fourth Proportional to 11,078,355.71, 15,296,228.98 and 7,160,429.92
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Solution
The fourth proportional to 11,078,355.71, 15,296,228.98 and 7,160,429.92 is: 9,886,627.45
Step by Step Solution
- Step 1: Write the proportion equation
11,078,355.71 : 15,296,228.98 = 7,160,429.92 : x - Step 2: Convert to fraction form
11,078,355.71/15,296,228.98 = 7,160,429.92/x - Step 3: Cross multiply
11,078,355.71x = 15,296,228.98 × 7,160,429.92 - Step 4: Simplify right side
11,078,355.71x = 109,527,575,595,421.44 - Step 5: Solve for x
x = 109,527,575,595,421.44/11,078,355.71 - Step 6: Final answer
x = 9,886,627.45
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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.