Finding the Fourth Proportional to 21,513,349.74, 29,687,558.80 and 11,723,585.27
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Solution
The fourth proportional to 21,513,349.74, 29,687,558.80 and 11,723,585.27 is: 16,178,076.93
Step by Step Solution
- Step 1: Write the proportion equation
21,513,349.74 : 29,687,558.80 = 11,723,585.27 : x - Step 2: Convert to fraction form
21,513,349.74/29,687,558.80 = 11,723,585.27/x - Step 3: Cross multiply
21,513,349.74x = 29,687,558.80 × 11,723,585.27 - Step 4: Simplify right side
21,513,349.74x = 348,044,627,049,938.88 - Step 5: Solve for x
x = 348,044,627,049,938.88/21,513,349.74 - Step 6: Final answer
x = 16,178,076.93
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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.