Finding the Fourth Proportional to 10,994,073.74, 15,172,227.18 and 6,642,319.28
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Solution
The fourth proportional to 10,994,073.74, 15,172,227.18 and 6,642,319.28 is: 9,166,645.55
Step by Step Solution
- Step 1: Write the proportion equation
10,994,073.74 : 15,172,227.18 = 6,642,319.28 : x - Step 2: Convert to fraction form
10,994,073.74/15,172,227.18 = 6,642,319.28/x - Step 3: Cross multiply
10,994,073.74x = 15,172,227.18 × 6,642,319.28 - Step 4: Simplify right side
10,994,073.74x = 100,778,777,118,254.03 - Step 5: Solve for x
x = 100,778,777,118,254.03/10,994,073.74 - Step 6: Final answer
x = 9,166,645.55
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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.