Finding the Fourth Proportional to 6,385,881.46, 8,812,447.50 and 3,485,248.78
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Solution
The fourth proportional to 6,385,881.46, 8,812,447.50 and 3,485,248.78 is: 4,809,605.70
Step by Step Solution
- Step 1: Write the proportion equation
6,385,881.46 : 8,812,447.50 = 3,485,248.78 : x - Step 2: Convert to fraction form
6,385,881.46/8,812,447.50 = 3,485,248.78/x - Step 3: Cross multiply
6,385,881.46x = 8,812,447.50 × 3,485,248.78 - Step 4: Simplify right side
6,385,881.46x = 30,713,571,898,189.05 - Step 5: Solve for x
x = 30,713,571,898,189.05/6,385,881.46 - Step 6: Final answer
x = 4,809,605.70
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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.