Finding the Fourth Proportional to 13,531,631.28, 18,655,585.74 and 10,749,984.09
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Solution
The fourth proportional to 13,531,631.28, 18,655,585.74 and 10,749,984.09 is: 14,820,626.26
Step by Step Solution
- Step 1: Write the proportion equation
13,531,631.28 : 18,655,585.74 = 10,749,984.09 : x - Step 2: Convert to fraction form
13,531,631.28/18,655,585.74 = 10,749,984.09/x - Step 3: Cross multiply
13,531,631.28x = 18,655,585.74 × 10,749,984.09 - Step 4: Simplify right side
13,531,631.28x = 200,547,249,894,630.84 - Step 5: Solve for x
x = 200,547,249,894,630.84/13,531,631.28 - Step 6: Final answer
x = 14,820,626.26
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1.5x scale
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.