Finding the Fourth Proportional to 7,478,153.84, 11,219,118.06 and 2,086,799.78
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Solution
The fourth proportional to 7,478,153.84, 11,219,118.06 and 2,086,799.78 is: 3,130,726.33
Step by Step Solution
- Step 1: Write the proportion equation
7,478,153.84 : 11,219,118.06 = 2,086,799.78 : x - Step 2: Convert to fraction form
7,478,153.84/11,219,118.06 = 2,086,799.78/x - Step 3: Cross multiply
7,478,153.84x = 11,219,118.06 × 2,086,799.78 - Step 4: Simplify right side
7,478,153.84x = 23,412,053,099,402.03 - Step 5: Solve for x
x = 23,412,053,099,402.03/7,478,153.84 - Step 6: Final answer
x = 3,130,726.33
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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.