Finding the Fourth Proportional to 21,458,617.41, 29,613,671.02 and 12,293,031.63
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Solution
The fourth proportional to 21,458,617.41, 29,613,671.02 and 12,293,031.63 is: 16,964,829.91
Step by Step Solution
- Step 1: Write the proportion equation
21,458,617.41 : 29,613,671.02 = 12,293,031.63 : x - Step 2: Convert to fraction form
21,458,617.41/29,613,671.02 = 12,293,031.63/x - Step 3: Cross multiply
21,458,617.41x = 29,613,671.02 × 12,293,031.63 - Step 4: Simplify right side
21,458,617.41x = 364,041,794,529,274.38 - Step 5: Solve for x
x = 364,041,794,529,274.38/21,458,617.41 - Step 6: Final answer
x = 16,964,829.91
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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.