Finding the Fourth Proportional to 38,838,893.65, 53,596,913.49 and 21,197,922.68
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Solution
The fourth proportional to 38,838,893.65, 53,596,913.49 and 21,197,922.68 is: 29,252,718.64
Step by Step Solution
- Step 1: Write the proportion equation
38,838,893.65 : 53,596,913.49 = 21,197,922.68 : x - Step 2: Convert to fraction form
38,838,893.65/53,596,913.49 = 21,197,922.68/x - Step 3: Cross multiply
38,838,893.65x = 53,596,913.49 × 21,197,922.68 - Step 4: Simplify right side
38,838,893.65x = 1,136,143,228,181,661.25 - Step 5: Solve for x
x = 1,136,143,228,181,661.25/38,838,893.65 - Step 6: Final answer
x = 29,252,718.64
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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.