Finding the Fourth Proportional to 21,633,548.34, 29,855,954.74 and 12,341,322.96
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Solution
The fourth proportional to 21,633,548.34, 29,855,954.74 and 12,341,322.96 is: 17,031,971.54
Step by Step Solution
- Step 1: Write the proportion equation
21,633,548.34 : 29,855,954.74 = 12,341,322.96 : x - Step 2: Convert to fraction form
21,633,548.34/29,855,954.74 = 12,341,322.96/x - Step 3: Cross multiply
21,633,548.34x = 29,855,954.74 × 12,341,322.96 - Step 4: Simplify right side
21,633,548.34x = 368,461,979,725,482.81 - Step 5: Solve for x
x = 368,461,979,725,482.81/21,633,548.34 - Step 6: Final answer
x = 17,031,971.54
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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.