Finding the Fourth Proportional to 13,513,105.84, 20,269,653.68 and 5,426,079.08
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Solution
The fourth proportional to 13,513,105.84, 20,269,653.68 and 5,426,079.08 is: 8,139,116.58
Step by Step Solution
- Step 1: Write the proportion equation
13,513,105.84 : 20,269,653.68 = 5,426,079.08 : x - Step 2: Convert to fraction form
13,513,105.84/20,269,653.68 = 5,426,079.08/x - Step 3: Cross multiply
13,513,105.84x = 20,269,653.68 × 5,426,079.08 - Step 4: Simplify right side
13,513,105.84x = 109,984,743,791,893.02 - Step 5: Solve for x
x = 109,984,743,791,893.02/13,513,105.84 - Step 6: Final answer
x = 8,139,116.58
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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.