Finding the Fourth Proportional to 90,211,859.66, 124,492,809.57 and 48,958,799.42
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Solution
The fourth proportional to 90,211,859.66, 124,492,809.57 and 48,958,799.42 is: 67,563,383.75
Step by Step Solution
- Step 1: Write the proportion equation
90,211,859.66 : 124,492,809.57 = 48,958,799.42 : x - Step 2: Convert to fraction form
90,211,859.66/124,492,809.57 = 48,958,799.42/x - Step 3: Cross multiply
90,211,859.66x = 124,492,809.57 × 48,958,799.42 - Step 4: Simplify right side
90,211,859.66x = 6,095,018,493,097,523 - Step 5: Solve for x
x = 6,095,018,493,097,523/90,211,859.66 - Step 6: Final answer
x = 67,563,383.75
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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.