Finding the Fourth Proportional to 15,243,402.60, 21,035,350.68 and 8,627,849.08
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Solution
The fourth proportional to 15,243,402.60, 21,035,350.68 and 8,627,849.08 is: 11,906,123.31
Step by Step Solution
- Step 1: Write the proportion equation
15,243,402.60 : 21,035,350.68 = 8,627,849.08 : x - Step 2: Convert to fraction form
15,243,402.60/21,035,350.68 = 8,627,849.08/x - Step 3: Cross multiply
15,243,402.60x = 21,035,350.68 × 8,627,849.08 - Step 4: Simplify right side
15,243,402.60x = 181,489,831,011,915.38 - Step 5: Solve for x
x = 181,489,831,011,915.38/15,243,402.60 - Step 6: Final answer
x = 11,906,123.31
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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.