Finding the Fourth Proportional to 13,178,511.39, 19,780,518.55 and 6,359,884.62
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Solution
The fourth proportional to 13,178,511.39, 19,780,518.55 and 6,359,884.62 is: 9,545,980.72
Step by Step Solution
- Step 1: Write the proportion equation
13,178,511.39 : 19,780,518.55 = 6,359,884.62 : x - Step 2: Convert to fraction form
13,178,511.39/19,780,518.55 = 6,359,884.62/x - Step 3: Cross multiply
13,178,511.39x = 19,780,518.55 × 6,359,884.62 - Step 4: Simplify right side
13,178,511.39x = 125,801,815,701,769.70 - Step 5: Solve for x
x = 125,801,815,701,769.70/13,178,511.39 - Step 6: Final answer
x = 9,545,980.72
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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.