Finding the Fourth Proportional to 7,824,163.20, 11,736,244.80 and 5,273,246.40
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Solution
The fourth proportional to 7,824,163.20, 11,736,244.80 and 5,273,246.40 is: 7,909,869.60
Step by Step Solution
- Step 1: Write the proportion equation
7,824,163.20 : 11,736,244.80 = 5,273,246.40 : x - Step 2: Convert to fraction form
7,824,163.20/11,736,244.80 = 5,273,246.40/x - Step 3: Cross multiply
7,824,163.20x = 11,736,244.80 × 5,273,246.40 - Step 4: Simplify right side
7,824,163.20x = 61,888,110,641,118.73 - Step 5: Solve for x
x = 61,888,110,641,118.73/7,824,163.20 - Step 6: Final answer
x = 7,909,869.60
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1.5x scale
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.