Finding the Fourth Proportional to 13,124,302.36, 18,108,634.80 and 7,614,484.72
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Solution
The fourth proportional to 13,124,302.36, 18,108,634.80 and 7,614,484.72 is: 10,506,304.96
Step by Step Solution
- Step 1: Write the proportion equation
13,124,302.36 : 18,108,634.80 = 7,614,484.72 : x - Step 2: Convert to fraction form
13,124,302.36/18,108,634.80 = 7,614,484.72/x - Step 3: Cross multiply
13,124,302.36x = 18,108,634.80 × 7,614,484.72 - Step 4: Simplify right side
13,124,302.36x = 137,887,922,984,660.25 - Step 5: Solve for x
x = 137,887,922,984,660.25/13,124,302.36 - Step 6: Final answer
x = 10,506,304.96
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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.