Finding the Fourth Proportional to 14,680,989.12, 20,265,415.08 and 9,784,424.49
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Solution
The fourth proportional to 14,680,989.12, 20,265,415.08 and 9,784,424.49 is: 13,506,271.41
Step by Step Solution
- Step 1: Write the proportion equation
14,680,989.12 : 20,265,415.08 = 9,784,424.49 : x - Step 2: Convert to fraction form
14,680,989.12/20,265,415.08 = 9,784,424.49/x - Step 3: Cross multiply
14,680,989.12x = 20,265,415.08 × 9,784,424.49 - Step 4: Simplify right side
14,680,989.12x = 198,285,423,608,767.28 - Step 5: Solve for x
x = 198,285,423,608,767.28/14,680,989.12 - Step 6: Final answer
x = 13,506,271.41
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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.