Finding the Fourth Proportional to 7,676,431.08, 11,518,631.70 and 3,130,814.76
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Solution
The fourth proportional to 7,676,431.08, 11,518,631.70 and 3,130,814.76 is: 4,697,847.45
Step by Step Solution
- Step 1: Write the proportion equation
7,676,431.08 : 11,518,631.70 = 3,130,814.76 : x - Step 2: Convert to fraction form
7,676,431.08/11,518,631.70 = 3,130,814.76/x - Step 3: Cross multiply
7,676,431.08x = 11,518,631.70 × 3,130,814.76 - Step 4: Simplify right side
7,676,431.08x = 36,062,702,141,363.89 - Step 5: Solve for x
x = 36,062,702,141,363.89/7,676,431.08 - Step 6: Final answer
x = 4,697,847.45
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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.