Finding the Fourth Proportional to 21,197,126.72, 29,251,951.68 and 11,903,407.04
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Solution
The fourth proportional to 21,197,126.72, 29,251,951.68 and 11,903,407.04 is: 16,426,655.00
Step by Step Solution
- Step 1: Write the proportion equation
21,197,126.72 : 29,251,951.68 = 11,903,407.04 : x - Step 2: Convert to fraction form
21,197,126.72/29,251,951.68 = 11,903,407.04/x - Step 3: Cross multiply
21,197,126.72x = 29,251,951.68 × 11,903,407.04 - Step 4: Simplify right side
21,197,126.72x = 348,197,887,561,451.81 - Step 5: Solve for x
x = 348,197,887,561,451.81/21,197,126.72 - Step 6: Final answer
x = 16,426,655.00
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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.