Finding the Fourth Proportional to 19,919,145.99, 27,489,829.19 and 11,099,182.76
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Solution
The fourth proportional to 19,919,145.99, 27,489,829.19 and 11,099,182.76 is: 15,317,656.61
Step by Step Solution
- Step 1: Write the proportion equation
19,919,145.99 : 27,489,829.19 = 11,099,182.76 : x - Step 2: Convert to fraction form
19,919,145.99/27,489,829.19 = 11,099,182.76/x - Step 3: Cross multiply
19,919,145.99x = 27,489,829.19 × 11,099,182.76 - Step 4: Simplify right side
19,919,145.99x = 305,114,638,220,992.75 - Step 5: Solve for x
x = 305,114,638,220,992.75/19,919,145.99 - Step 6: Final answer
x = 15,317,656.61
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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.