Finding the Fourth Proportional to 13,964,483.76, 20,901,920.76 and 7,471,315.68
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Solution
The fourth proportional to 13,964,483.76, 20,901,920.76 and 7,471,315.68 is: 11,183,001.89
Step by Step Solution
- Step 1: Write the proportion equation
13,964,483.76 : 20,901,920.76 = 7,471,315.68 : x - Step 2: Convert to fraction form
13,964,483.76/20,901,920.76 = 7,471,315.68/x - Step 3: Cross multiply
13,964,483.76x = 20,901,920.76 × 7,471,315.68 - Step 4: Simplify right side
13,964,483.76x = 156,164,848,316,305.53 - Step 5: Solve for x
x = 156,164,848,316,305.53/13,964,483.76 - Step 6: Final answer
x = 11,183,001.89
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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.