Finding the Fourth Proportional to 80,290,863.84, 110,776,981.68 and 45,478,022.88
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Solution
The fourth proportional to 80,290,863.84, 110,776,981.68 and 45,478,022.88 is: 62,745,845.12
Step by Step Solution
- Step 1: Write the proportion equation
80,290,863.84 : 110,776,981.68 = 45,478,022.88 : x - Step 2: Convert to fraction form
80,290,863.84/110,776,981.68 = 45,478,022.88/x - Step 3: Cross multiply
80,290,863.84x = 110,776,981.68 × 45,478,022.88 - Step 4: Simplify right side
80,290,863.84x = 5,037,918,107,420,381 - Step 5: Solve for x
x = 5,037,918,107,420,381/80,290,863.84 - Step 6: Final answer
x = 62,745,845.12
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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.