Finding the Fourth Proportional to 25,586,196.36, 38,365,239.42 and 12,603,781.68
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Solution
The fourth proportional to 25,586,196.36, 38,365,239.42 and 12,603,781.68 is: 18,898,748.96
Step by Step Solution
- Step 1: Write the proportion equation
25,586,196.36 : 38,365,239.42 = 12,603,781.68 : x - Step 2: Convert to fraction form
25,586,196.36/38,365,239.42 = 12,603,781.68/x - Step 3: Cross multiply
25,586,196.36x = 38,365,239.42 × 12,603,781.68 - Step 4: Simplify right side
25,586,196.36x = 483,547,101,750,609.81 - Step 5: Solve for x
x = 483,547,101,750,609.81/25,586,196.36 - Step 6: Final answer
x = 18,898,748.96
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.