Finding the Fourth Proportional to 10,109,511.30, 15,164,266.95 and 8,913,769.05
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Solution
The fourth proportional to 10,109,511.30, 15,164,266.95 and 8,913,769.05 is: 13,370,653.58
Step by Step Solution
- Step 1: Write the proportion equation
10,109,511.30 : 15,164,266.95 = 8,913,769.05 : x - Step 2: Convert to fraction form
10,109,511.30/15,164,266.95 = 8,913,769.05/x - Step 3: Cross multiply
10,109,511.30x = 15,164,266.95 × 8,913,769.05 - Step 4: Simplify right side
10,109,511.30x = 135,170,773,404,847.91 - Step 5: Solve for x
x = 135,170,773,404,847.91/10,109,511.30 - Step 6: Final answer
x = 13,370,653.58
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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.