Finding the Fourth Proportional to 2,136,309.12, 2,948,106.36 and 1,169,440.06
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Solution
The fourth proportional to 2,136,309.12, 2,948,106.36 and 1,169,440.06 is: 1,613,827.16
Step by Step Solution
- Step 1: Write the proportion equation
2,136,309.12 : 2,948,106.36 = 1,169,440.06 : x - Step 2: Convert to fraction form
2,136,309.12/2,948,106.36 = 1,169,440.06/x - Step 3: Cross multiply
2,136,309.12x = 2,948,106.36 × 1,169,440.06 - Step 4: Simplify right side
2,136,309.12x = 3,447,633,678,524.78 - Step 5: Solve for x
x = 3,447,633,678,524.78/2,136,309.12 - Step 6: Final answer
x = 1,613,827.16
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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.